Herman Zaiman

presents

Pictorial Presentation of Parasites

 

Dr. Herman Zaiman (1917-2007), starting from the late 60's, compiled an extensive collection of slide photos showing various medical aspects of the most common human parasites. Dr. Zeiman made copies of this collection available to medical schools for teaching purposes. This teaching collection of slides were donated and deposited at the Harold W. Manter of Parasitology. These slides were later scanned and converted to digital images and are presented below for the benefit of medical students.

 

Warning: some of the images are very disturbing!

 1 Echinococcus multilocularis. Vole liver. Note the multicystic character of the parasite. Numerous scolices are present. The small dark granules are calcareous bodies. Echinococcus multilocularis. Vole liver. Note the multicystic character of the parasite. Numerous scolices are present. The small dark granules are calcareous bodies.
 2 Echinococcus multilocularis. At higher power, the scolices show hooklets. Echinococcus multilocularis. At higher power, the scolices show hooklets.
 3 Echinococcus multilocularis. Vole liver, the hooklets are better seen at this greater magnification. Echinococcus multilocularis. Vole liver, the hooklets are better seen at this greater magnification.
 4 Spirometra mansonoides. Experimental sparganum infection in a rat. Multiple sections of the parasite are seen within the rat tissues. Spirometra mansonoides. Experimental sparganum infection in a rat. Multiple sections of the parasite are seen within the rat tissues.
 5 Spirometra mansonoides. Experimental sparganum infection in a rat, A high power longitudinal section through a portion of a single worm reveals structural detail. Spirometra mansonoides. Experimental sparganum infection in a rat, A high power longitudinal section through a portion of a single worm reveals structural detail.
 6 Sparganum. Human case. A cross section through the parasite shows typical tapeworm morphology. A dense neutrophilic infiltrate with many eosinophils is present in the adjacent muscle. Sparganum. Human case. A cross section through the parasite shows typical tapeworm morphology. A dense neutrophilic infiltrate with many eosinophils is present in the adjacent muscle.
 7 Trichuris. Dog caecum. The thin anterior portion is seen in the mucosa. The cross section in the lumen at the left upper corner has a larger diameter and is of course from the posterior 'handle'. Eggs are present in the uterus of this worm. Trichuris. Dog caecum. The thin anterior portion is seen in the mucosa. The cross section in the lumen at the left upper corner has a larger diameter and is of course from the posterior 'handle'. Eggs are present in the uterus of this worm.
 8 Trichuris. Dog caecum. Cross sections through the thin 'lash-like' anterior portion and the thick posterior 'handle' are seen. Note the musculature of the body wall beneath the cuticle, the gut and the uterus filled with eggs. Trichuris. Dog caecum. Cross sections through the thin 'lash-like' anterior portion and the thick posterior 'handle' are seen. Note the musculature of the body wall beneath the cuticle, the gut and the uterus filled with eggs.
 9 Clonorchis sinensis. Liver, the parasites are seen in the biliary passages where they have caused considerable fibrosis. The parasite at the right is sectioned through the anterior sucker. Clonorchis sinensis. Liver, the parasites are seen in the biliary passages where they have caused considerable fibrosis. The parasite at the right is sectioned through the anterior sucker.
 10 Fasciola hepatica Liver. Cuticular spines, a complicated gut pattern due to multiple branching caeca and characteristic ova differentiate Fasciola from Clonorchis in tissue. Fasciola hepatica Liver. Cuticular spines, a complicated gut pattern due to multiple branching caeca and characteristic ova differentiate Fasciola from Clonorchis in tissue.
 11 Capillaria hepatica Eggs in human liver. The eggs are seen in upper mid-portion of the slide. There is considerable tissue destruction and an infiltrate which is predominantly eosinophilic. Specimen courtesy K. Unat. Capillaria hepatica Eggs in human liver. The eggs are seen in upper mid-portion of the slide. There is considerable tissue destruction and an infiltrate which is predominantly eosinophilic. Specimen courtesy K. Unat.
 12 Capillaria hepatica Rodent liver. This high power view shows the plugs at both ends of the egg, the dense dark inner shell and the lighter outer layer which appears to be divided. Capillaria hepatica Rodent liver. This high power view shows the plugs at both ends of the egg, the dense dark inner shell and the lighter outer layer which appears to be divided.
 13 Schistosoma haematobium Eggs in human urinary bladder. The calcified eggs are seen below the bladder epithelium. There is marked hypertrophy of the bladder musculature and some epithelium is lost at the upper right. Schistosoma haematobium Eggs in human urinary bladder. The calcified eggs are seen below the bladder epithelium. There is marked hypertrophy of the bladder musculature and some epithelium is lost at the upper right.
 14 Schistosoma haematobium Eggs in human urinary bladder. The open space at the upper portion of the slide is the bladder lumen. The normal urinary bladder epithelium has been replaced by squamou s cells. Schistosoma haematobium Eggs in human urinary bladder. The open space at the upper portion of the slide is the bladder lumen. The normal urinary bladder epithelium has been replaced by squamou s cells.
 15 Schistosoma haematobium Egg in bowel. Schistosoma haematobium Egg in bowel.
 16 Schistosoma japonicum Paired adult male and female. The female lies within the gynecophoric canal of the larger male. Schistosoma japonicum Paired adult male and female. The female lies within the gynecophoric canal of the larger male.
 17 Schistosoma japonicum Paired adult males and females in the mesenteric veins of a patient. Two veins, each containing a male worm embracing a female, are seen in the lower right corner of the slide. Schistosoma japonicum Paired adult males and females in the mesenteric veins of a patient. Two veins, each containing a male worm embracing a female, are seen in the lower right corner of the slide.
 18 Schistosoma japonicum Paired adult male and female in a mesenteric vein. One of the pairs is seen at the greater magnification. Schistosoma japonicum Paired adult male and female in a mesenteric vein. One of the pairs is seen at the greater magnification.
 19 Schistosoma japonicum Egg in monkey lung. A granuloma containing an egg shell is seen in the lung. Note the marked eosinophilic infiltrate. Schistosoma japonicum Egg in monkey lung. A granuloma containing an egg shell is seen in the lung. Note the marked eosinophilic infiltrate.
 20 Schistosoma mansoni. Adults in a mesenteric vein. Note the intimal thickening of the vein. Schistosoma mansoni. Adults in a mesenteric vein. Note the intimal thickening of the vein.
 21 Schistosoma mansoni. Adults in a mesenteric vein shown at greater magnification. Schistosoma mansoni. Adults in a mesenteric vein shown at greater magnification.
 22 Schistosoma mansoni. Adult male in the mesoappendiceal vein. The parasite is seen as a coiled object is the upper right hand corner. No ova were seen in the appendix itself. Schistosoma mansoni. Adult male in the mesoappendiceal vein. The parasite is seen as a coiled object is the upper right hand corner. No ova were seen in the appendix itself.
 23 Schistosoma mansoni. Adult male in the mesoappendiceal vein. At this magnification the digestive ceca and cuticular tubercles are easily seen. Schistosoma mansoni. Adult male in the mesoappendiceal vein. At this magnification the digestive ceca and cuticular tubercles are easily seen.
 24 Schistosoma mansoni. Human liver showing typical 'pipe-stem fibrosis' due to embolization of eggs from the mesenteric vessels. Schistosoma mansoni. Human liver showing typical 'pipe-stem fibrosis' due to embolization of eggs from the mesenteric vessels.
 25 Schistosoma mansoni. Rectal biopsy showing that the egg shells are acidfast (red). Schistosoma mansoni. Rectal biopsy showing that the egg shells are acidfast (red).
 26 Schistosoma mansoni. Eggs in an adenocarcinoma of the rectal mucosa. The ova are more deeply stained than the surrounding tumor. Schistosoma mansoni. Eggs in an adenocarcinoma of the rectal mucosa. The ova are more deeply stained than the surrounding tumor.
 27 Schistosoma mansoni. Egg in pancreas. Within the centrally placed granuloma, a collapsed egg shell can be seen. Schistosoma mansoni. Egg in pancreas. Within the centrally placed granuloma, a collapsed egg shell can be seen.
 28 Schistosoma mansoni. Eggs in a plexus of nerves within the neck. Schistosoma mansoni. Eggs in a plexus of nerves within the neck.
 29 Trichinella spiralis. A degenerating muscle fibre is invaded by a young Trichinella (4 week old infection). Trichinella spiralis. A degenerating muscle fibre is invaded by a young Trichinella (4 week old infection).
 30 Trichinella spiralis Human case. Three larvae are seen in three separate cysts. There is a marked inflammatory reaction in the surrounding muscle. Trichinella spiralis Human case. Three larvae are seen in three separate cysts. There is a marked inflammatory reaction in the surrounding muscle.
 31 Trichinella spiralis. Same case. Three larvae in a single cyst. Trichinella spiralis. Same case. Three larvae in a single cyst.
 32 Demodexfolliculorum Multiple cross sections of the parasite are seen in this section through the hair follicles of a dog's skin. Demodexfolliculorum Multiple cross sections of the parasite are seen in this section through the hair follicles of a dog's skin.
 33 Sarcocystis. The parasite appears as a flattened purplish red oval which is divided into separate chambers by septae. Sarcocystis. The parasite appears as a flattened purplish red oval which is divided into separate chambers by septae.
 34 Sarcocystis. The septal character of the large cysts is better appreciated in this section. The smaller purplish red mass at the upper portion of the slide is a smaller parasite. At the left the section passes through the wall of the parasite. Sarcocystis. The septal character of the large cysts is better appreciated in this section. The smaller purplish red mass at the upper portion of the slide is a smaller parasite. At the left the section passes through the wall of the parasite.
 35 Sarcocystis. The crescentic spores are readily seen at this greater magnification. Sarcocystis. The crescentic spores are readily seen at this greater magnification.
 36 Paragonimus westermani Two parasites are seen within a lung cavity Paragonimus westermani Two parasites are seen within a lung cavity
 37 Onchocerca volvulus. Subcutaneous nodule. The fibrotic nodule contains coiled up worms which are sectioned in various planes. Note the cuticle, the uterus containing microfilariae in various stages of development and the digestive tract which has a lesser diameter than the uteri. Onchocerca volvulus. Subcutaneous nodule. The fibrotic nodule contains coiled up worms which are sectioned in various planes. Note the cuticle, the uterus containing microfilariae in various stages of development and the digestive tract which has a lesser diameter than the uteri.
 38 Onchocerca volvulus. At higher power, the microfilariae are readily identified. The gut is seen as a cross section in the lower parasite and longitudinally in the upper parasite. Onchocerca volvulus. At higher power, the microfilariae are readily identified. The gut is seen as a cross section in the lower parasite and longitudinally in the upper parasite.
 39 Onchocerca volvulus. In this section, the microfilariae in the central parasite appear as graceful curves. Onchocerca volvulus. In this section, the microfilariae in the central parasite appear as graceful curves.
 40 Wuchereria bancrofti Adults in a lymphatic duct of the epididymis. The parasite presents as dark blue material in the upper portion of the picture. Wuchereria bancrofti Adults in a lymphatic duct of the epididymis. The parasite presents as dark blue material in the upper portion of the picture.
 41 Wuchereria bancrofti Multiple sections of the worm are seen i n a dilated lymphatic vessel. Wuchereria bancrofti Multiple sections of the worm are seen i n a dilated lymphatic vessel.
 42 Wuchereria bancrofti At higher power, the developing microfilariae and cuticle are seen. Wuchereria bancrofti At higher power, the developing microfilariae and cuticle are seen.
 43 Ascaris lumbricoides Cross section of an adult female. The outer cuticle is partially detached from the parasite at 12 o'clock. Below it, one can see the hypoderm i s and musculature. Lateral lines are visible at 12 and 6 o'clock. Central to the musculature, the flattened tube is gut, the round tubes are reproductive structures. The large round tubes are egg-containing uteri, the others are sections through ovaries and oviducts. Ascaris lumbricoides Cross section of an adult female. The outer cuticle is partially detached from the parasite at 12 o'clock. Below it, one can see the hypoderm i s and musculature. Lateral lines are visible at 12 and 6 o'clock. Central to the musculature, the flattened tube is gut, the round tubes are reproductive structures. The large round tubes are egg-containing uteri, the others are sections through ovaries and oviducts.
 44 Ascaris lumbricoides Cross section of an adult male. The male is smaller in cross section. The round ducts are male reproductive structures. Ascaris lumbricoides Cross section of an adult male. The male is smaller in cross section. The round ducts are male reproductive structures.
 45 Ascaris lumbricoides. Larva in bronchiole of experimentally infected guinea pig. Ascaris lumbricoides. Larva in bronchiole of experimentally infected guinea pig.
 46 Ascaris lumbricoides Egg in feces. Both the outer mamillated coat and the smooth thick shell, central to it, are visible. Ascaris lumbricoides Egg in feces. Both the outer mamillated coat and the smooth thick shell, central to it, are visible.
 47 Ascaris lumbricoides. Egg in liver. Wandering adult ascarids may deposit eggs during their travel. This granulomatous reaction was formed around one such egg in the liver. The mamillated coat is lacking but the shell is obvious. The egg shows two cells in this plane. Ascaris lumbricoides. Egg in liver. Wandering adult ascarids may deposit eggs during their travel. This granulomatous reaction was formed around one such egg in the liver. The mamillated coat is lacking but the shell is obvious. The egg shows two cells in this plane.
 48 Strongyloides stercoralis Human bowel. Within the crypts one sees sections through eggs, larvae and an adult. Strongyloides stercoralis Human bowel. Within the crypts one sees sections through eggs, larvae and an adult.
 49 Strongyloides stercoralis. Human bowel. Five eggs in various stages of development are seen in the crypts of the bowel. Strongyloides stercoralis. Human bowel. Five eggs in various stages of development are seen in the crypts of the bowel.
 50 Strongyloides stercoralis. Human bowel. There is a copious outpouring of mucus into the bowel lumen. In the mucus, one can see longitudinal and cross sections of larvae. Eggs and larvae are present in the crypts. Strongyloides stercoralis. Human bowel. There is a copious outpouring of mucus into the bowel lumen. In the mucus, one can see longitudinal and cross sections of larvae. Eggs and larvae are present in the crypts.
 51 Trichuris trichiura. Human appendix. Within the lumen of the appendix, one sees cross sections. Trichuris trichiura. Human appendix. Within the lumen of the appendix, one sees cross sections.
 52 Trichuris trichiura. Higher magnification of previous slide. Trichuris trichiura. Higher magnification of previous slide.
 53 Enterobius vermicularis. Anterior end of the adult parasite shows the cervical alae and the bulbous esophagus. (Human appendix.) Enterobius vermicularis. Anterior end of the adult parasite shows the cervical alae and the bulbous esophagus. (Human appendix.)
 54 Enterobius vermicularis. Multiple cross sections show lateral crests, digestive tracts and ova in uteri. This photograph was taken primarily to demonstrate the structure of the esophagus in longitudinal section.Note the free blood present in the appendiceal lumen and in the gut of the parasite. Enterobius vermicularis. Multiple cross sections show lateral crests, digestive tracts and ova in uteri. This photograph was taken primarily to demonstrate the structure of the esophagus in longitudinal section.Note the free blood present in the appendiceal lumen and in the gut of the parasite.
 55 Enterobius vermicularis. Longitudinal section of an adult worm in the appendix. The structure of the esophagus is more apparent in this higher power. Enterobius vermicularis. Longitudinal section of an adult worm in the appendix. The structure of the esophagus is more apparent in this higher power.
 56 Enterobius vermicularis. Longitudinal section of the blood containing worm gut. Enterobius vermicularis. Longitudinal section of the blood containing worm gut.
 57 Fasciola hepatica. Whole mount. Fasciola hepatica. Whole mount.
 58 Fasciola hepatica. Higher power view of the anterior portion of the parasite in slide 57. This was taken to demonstrate the cuticular spines which help differentiate this parasite from Clonorchis when sections of infected bile ducts must be examined. Fasciola hepatica. Higher power view of the anterior portion of the parasite in slide 57. This was taken to demonstrate the cuticular spines which help differentiate this parasite from Clonorchis when sections of infected bile ducts must be examined.
 59 Fasciola hepatica Eggs in adult within a bile duct. These eggs larger than those of Clonorchis; they are more oval and have an operculum which appears practically continuous with the rest of the egg shell. Fasciola hepatica Eggs in adult within a bile duct. These eggs larger than those of Clonorchis; they are more oval and have an operculum which appears practically continuous with the rest of the egg shell.
 60 Clonorchis sinensis. Liver. This is a higher power of the material seen in slide number 9. Note that the section passes through the oral sucker and pharynx. The two more or less elliptical rings represent sections through the digestive ceca. Clonorchis sinensis. Liver. This is a higher power of the material seen in slide number 9. Note that the section passes through the oral sucker and pharynx. The two more or less elliptical rings represent sections through the digestive ceca.
 61 Clonorchis sinensis. Eggs in adult within the bile duct. Note the way the operculum fits the rest of the egg. Clonorchis sinensis. Eggs in adult within the bile duct. Note the way the operculum fits the rest of the egg.
 62 Fasciolopsis buski. Whole mount. Both suckers, the digestive tract and the reproductive systems are seen. Fasciolopsis buski. Whole mount. Both suckers, the digestive tract and the reproductive systems are seen.
 63 Schistosoma haematobium Polyp formation and squamous cell metaplasia in a human urinary bladder heavily infiltrated with eggs. Schistosoma haematobium Polyp formation and squamous cell metaplasia in a human urinary bladder heavily infiltrated with eggs.
 64 Diphyllobothrium latum. Coracidium hatching from an egg. Dipylidium caninum. Scolex. Three of the four suckers and the retracted armed rostellum can be seen. The hooks are remarkably small in size. Diphyllobothrium latum. Coracidium hatching from an egg. Dipylidium caninum. Scolex. Three of the four suckers and the retracted armed rostellum can be seen. The hooks are remarkably small in size.
 65 Dipylidium caninum. Gravid proglottid. The characteristic massing of ova and some detail at one of the genital pores can be seen. Dipylidium caninum. Gravid proglottid. The characteristic massing of ova and some detail at one of the genital pores can be seen.
 66 Spirometra mansonoides. Gravid proglottid. The gravid proglottid is broader than long, has a centrally placed more or less coiled uterus and a central genital aperture. Spirometra mansonoides. Gravid proglottid. The gravid proglottid is broader than long, has a centrally placed more or less coiled uterus and a central genital aperture.
 67 Spirometra mansonoides. Cross section through a gravid proglottid. Spirometra mansonoides. Cross section through a gravid proglottid.
 68 Dipetalonetna streptocerca. Section of skin with worms. H & E stain Low and high magnifications. Dipetalonetna streptocerca. Section of skin with worms. H & E stain Low and high magnifications.
 69 Echinococcus granulosus Several small cysts taken from the vertebral column of a patient with signs and symptoms of lower cord compression. Echinococcus granulosus Several small cysts taken from the vertebral column of a patient with signs and symptoms of lower cord compression.
 70 Leishmania donovani. Low power view of touch preparation made from experimentally infected hamster spleen. Several macrophages contain numerous parasites. Other parasites appear free in the fluid portion of the preparation. Leishmania donovani. Low power view of touch preparation made from experimentally infected hamster spleen. Several macrophages contain numerous parasites. Other parasites appear free in the fluid portion of the preparation.
 71 Leishmania donovani High power view of touch preparation made from experimentally infected hamster. Several parasites are present in each of three macrophages. Leishmania donovani High power view of touch preparation made from experimentally infected hamster. Several parasites are present in each of three macrophages.
 72 Taenia solium. Scolex. The four suckers and hooks are readily seen. Taenia solium. Scolex. The four suckers and hooks are readily seen.
 73 Taenia saginata. Scolex. Four suckers but no hooks are seen on this scolex. Taenia saginata. Scolex. Four suckers but no hooks are seen on this scolex.
 74 Taenia saginata. Gravid proglottid. More than 14 lateral branches emerge from the uterus. Taenia saginata. Gravid proglottid. More than 14 lateral branches emerge from the uterus.
 75 Toxoplasma gondii Pseudocysts in human heart. This low power view shows two pseudocysts in the myocardium of an adult patient who had a concomitant blood dyscrasia. Numerous organisms are  present in each of the cysts. One of the pseudocysts has an unusual and insignificant tail-like extension. Toxoplasma gondii Pseudocysts in human heart. This low power view shows two pseudocysts in the myocardium of an adult patient who had a concomitant blood dyscrasia. Numerous organisms are present in each of the cysts. One of the pseudocysts has an unusual and insignificant tail-like extension.
 76 Toxoplasma gondii. High power view of pseudocyst with the tadpole shape. Toxoplasma gondii. High power view of pseudocyst with the tadpole shape.
 77 Leishmania tropica Low power view of section of ulcer. The epidermis is absent over the open ulcer. Adjacent epidermis is markedly thinned. There i s destruction and inflammation below the epithelium. Leishmania tropica Low power view of section of ulcer. The epidermis is absent over the open ulcer. Adjacent epidermis is markedly thinned. There i s destruction and inflammation below the epithelium.
 78 Leishmania tropica Higher power view of lesion shows the parasites as small dots. Leishmania tropica Higher power view of lesion shows the parasites as small dots.
 79 Leishmania tropica Higher power view of lesion shows the parasites as small dots. Leishmania tropica Higher power view of lesion shows the parasites as small dots.
 80 Schistosoma mansoni Eggs in press preparation of bowel biopsy. The lateral spines are well shown but larvae are not seen in the egg shells. Schistosoma mansoni Eggs in press preparation of bowel biopsy. The lateral spines are well shown but larvae are not seen in the egg shells.
 81 Schistosoma mansoni. Eggs in press preparation. These eggs contain larvae and are apparently older than those in slide 80. Schistosoma mansoni. Eggs in press preparation. These eggs contain larvae and are apparently older than those in slide 80.
 82 Schistosoma mansoni. Eggs in hematoxylin-eosin preparation of bowel. One of the eggs in this granuloma shows a lateral spine nicely. Schistosoma mansoni. Eggs in hematoxylin-eosin preparation of bowel. One of the eggs in this granuloma shows a lateral spine nicely.
 83 Paragonimus westermani Human brain. The empty space in the photograph is the abscess cavity which contains the parasite. The tissue shows a marked inflammatory reaction (blue) and brain replacement.Small round or oval spaces surrounded by refractile substances are the remains of eggs trapped in the tissue. Paragonimus westermani Human brain. The empty space in the photograph is the abscess cavity which contains the parasite. The tissue shows a marked inflammatory reaction (blue) and brain replacement.Small round or oval spaces surrounded by refractile substances are the remains of eggs trapped in the tissue.
 84 Paragonimus westermani. Eggs in human brain. At higher power the egg shells and spaces they surround are readily seen. Giant cells have replaced some of the egg contents. Paragonimus westermani. Eggs in human brain. At higher power the egg shells and spaces they surround are readily seen. Giant cells have replaced some of the egg contents.
 85 Macracanthorhynchus hirudinaceus. Proboscis attached to pig bowel wall. The insertion of the toothed proboscis, the inflammation, ulceration and hemorrhage caused are seen in this low power view. Macracanthorhynchus hirudinaceus. Proboscis attached to pig bowel wall. The insertion of the toothed proboscis, the inflammation, ulceration and hemorrhage caused are seen in this low power view.
 86 Macracanthorhynchus hirudinaceus. A single tooth in the proboscis is shown at this higher power. Macracanthorhynchus hirudinaceus. A single tooth in the proboscis is shown at this higher power.
 87 Ascaris. An adult male (coiled posterior end) is shown with a female. The anterior end is more slender than the posterior. Ascaris. An adult male (coiled posterior end) is shown with a female. The anterior end is more slender than the posterior.
 88 Ascaris Tangled mass of ascarids is shown. Ascaris Tangled mass of ascarids is shown.
 89 Trichuris. Several adult males are shown. Note the coiled posterior ends and the thin anterior regions. Trichuris. Several adult males are shown. Note the coiled posterior ends and the thin anterior regions.
 90 Trichuris. Several adult females are shown. Note the thick posterior and thin anterior portions of the worms which simulate a whip handle and lash. Trichuris. Several adult females are shown. Note the thick posterior and thin anterior portions of the worms which simulate a whip handle and lash.
 91 Trichuris. Males and females. Trichuris. Males and females.
 92 Dirofilaria immitis Adults removed from dog heart. Dirofilaria immitis Adults removed from dog heart.
 93 Dermacentor andersoni and Argas persicus Dorsal view. A brightly decorated scutum is present on the hard tick (Dermacentor) but not on the soft tick (Argas). Dermacentor andersoni and Argas persicus Dorsal view. A brightly decorated scutum is present on the hard tick (Dermacentor) but not on the soft tick (Argas).
 94 Argas persicus. Dorsal view. Argas persicus. Dorsal view.
 95 Argas persicus Ventral view. Argas persicus Ventral view.
 96 Ornithodoros corlaceus Several specimens of this soft tick are shown. Ornithodoros corlaceus Several specimens of this soft tick are shown.
 97 Dermacentor andersoni Eggs. Dermacentor andersoni Eggs.
 98 Dermacentorandersoni Seed ticks. Seed, or larval ticks have only three pairs of legs. Dermacentorandersoni Seed ticks. Seed, or larval ticks have only three pairs of legs.
 99 Dermacentor andersoni. Fed and unfed nymphs. Nymphs have four pairs of legs as do the adults. The fed ticks are globose and dark with ingested blood. Dermacentor andersoni. Fed and unfed nymphs. Nymphs have four pairs of legs as do the adults. The fed ticks are globose and dark with ingested blood.
 100 Dermacentor andersoni Dorsal view. The scutum on the male covers more surface than the scutum does in the female. Dermacentor andersoni Dorsal view. The scutum on the male covers more surface than the scutum does in the female.
 101 Dermacentor andersoni. Males, dorsal and ventral views. Dermacentor andersoni. Males, dorsal and ventral views.
 102 Dermacentor andersoni. Females, dorsal and ventral views. Dermacentor andersoni. Females, dorsal and ventral views.
 103 Ixodid ticks. An engorged ixodid female is flanked by an unfed female (small scutum) and by an unfed male. Ixodid ticks. An engorged ixodid female is flanked by an unfed female (small scutum) and by an unfed male.
 104 Schistosomatium douthitti. Swimmer's itch caused by non human schistosome cercarial penetration of human skin. One of the schistosomes responsible for swimmer's itch in certain areas of North America. These photographs were taken at Iowa Lakeside Laboratory in northwest Iowa by M.J. Ulmer. Scorpion. Note the large pincer-like appendages, the four pairs of legs and the terminal spine on the tail. Schistosomatium douthitti. Swimmer's itch caused by non human schistosome cercarial penetration of human skin. One of the schistosomes responsible for swimmer's itch in certain areas of North America. These photographs were taken at Iowa Lakeside Laboratory in northwest Iowa by M.J. Ulmer. Scorpion. Note the large pincer-like appendages, the four pairs of legs and the terminal spine on the tail.
 105 Pediculus humanus Several adults are seen. They are flattened dorso-ventrally and have the 3 pairs of legs characteristic of insects. Pediculus humanus Several adults are seen. They are flattened dorso-ventrally and have the 3 pairs of legs characteristic of insects.
 106 Schistosoma japonicum. Oncomelania. Snail shells. These molluscs are an intermediate host of Schistosoma japonicum. Schistosoma japonicum. Oncomelania. Snail shells. These molluscs are an intermediate host of Schistosoma japonicum.
 107 Schistosoma mansoni Surface of human liver showing pseudotubercular reaction (white nodules) due to the presence of eggs. Schistosoma mansoni Surface of human liver showing pseudotubercular reaction (white nodules) due to the presence of eggs.
 108 Schistosoma mansoni Pseudotubercles in liver. Similar nodules are demonstrated deep in the liver. Schistosoma mansoni Pseudotubercles in liver. Similar nodules are demonstrated deep in the liver.
 109 Schistosoma mansoni. Granulomatous reaction around eggs in mesenteries. A middle age Puerto Rican female suffering from signs and symptoms of cholecystitis was explored surgically. Gross inspection of the abdomen revealed a thickened mesentery studded with yellow-white granules suggesting metastatic carcinoma. Cholecystectomy was performed. The mesenteric nodules were due to eggs of Sehistosoma mansoni. Schistosoma mansoni. Granulomatous reaction around eggs in mesenteries. A middle age Puerto Rican female suffering from signs and symptoms of cholecystitis was explored surgically. Gross inspection of the abdomen revealed a thickened mesentery studded with yellow-white granules suggesting metastatic carcinoma. Cholecystectomy was performed. The mesenteric nodules were due to eggs of Sehistosoma mansoni.
 110 Schistosoma mansoni. Egg in mesenteric granuloma. A single lateral spined egg is seen in a fairly fibrous granuloma. Schistosoma mansoni. Egg in mesenteric granuloma. A single lateral spined egg is seen in a fairly fibrous granuloma.
 111 Schistosoma mansoni The acid fast character of the egg in this granulomatous reaction is striking. Schistosoma mansoni The acid fast character of the egg in this granulomatous reaction is striking.
 112 Dicrocoelium dendriticum. Formalin fixed, unstained adults. The anterior end is somewhat more slender than the posterior which is filled with uterus. The anterior extension of the uterus toward the genital atrium is suggested in some of the specimens. Dicrocoelium dendriticum. Formalin fixed, unstained adults. The anterior end is somewhat more slender than the posterior which is filled with uterus. The anterior extension of the uterus toward the genital atrium is suggested in some of the specimens.
 113 Dicrocoelium dendriticum. Stained adult. The oral and ventral suckers, the digestive ceca, the testes, ovary, vitelline glands and uterus are readily seen. Dicrocoelium dendriticum. Stained adult. The oral and ventral suckers, the digestive ceca, the testes, ovary, vitelline glands and uterus are readily seen.
 114 Dicrocoelium dendriticum. The operculated egg measures approximately 28 x 40 micra. Dicrocoelium dendriticum. The operculated egg measures approximately 28 x 40 micra.
 115 Fasciola hepatica Dorsal view of formalin fixed unstained adult. The anterior cone is readily seen in this and the following specimen. Compare this with slide number 57. Fasciola hepatica Dorsal view of formalin fixed unstained adult. The anterior cone is readily seen in this and the following specimen. Compare this with slide number 57.
 116 Fasciola gigantica. Dorsal view of formalin fixed unstained adult. Fasciola gigantica. Dorsal view of formalin fixed unstained adult.
 117 Fasciola hepatica and gigantica. Ventral view of formalin fixed, unstained specimens. Compare size and note the ventral suckers in both parasites. Fasciola hepatica and gigantica. Ventral view of formalin fixed, unstained specimens. Compare size and note the ventral suckers in both parasites.
 118 Schistosoma japonicum Cross section of bowel wall. This lower power view of the bowel in cross section shows one pair of adults in each of two mesenteric veins plus eggs which present as dark spots in the mucosa and submucosa. Compare with slides 17 and 18. Schistosoma japonicum Cross section of bowel wall. This lower power view of the bowel in cross section shows one pair of adults in each of two mesenteric veins plus eggs which present as dark spots in the mucosa and submucosa. Compare with slides 17 and 18.
 119 Schistosoma japonicum. Fibrous reaction around eggs in liver. The eggs present as dark objects. Schistosoma japonicum. Fibrous reaction around eggs in liver. The eggs present as dark objects.
 120 Echinococcus multilocularis. Experimental infection in the liver of a muskrat. The multicystic nature of the parasite is well demonstrated in this formalin fixed unstained specimen. Echinococcus multilocularis. Experimental infection in the liver of a muskrat. The multicystic nature of the parasite is well demonstrated in this formalin fixed unstained specimen.
 121 Echinococcus granulosus. Adults. formalin fixed, unstained. The anterior scolex and uterine structures (posterior segment) can be seen by those who are kindly disposed. Echinococcus granulosus. Adults. formalin fixed, unstained. The anterior scolex and uterine structures (posterior segment) can be seen by those who are kindly disposed.
 122 Echinococcus granulosus. Cyst in liver. A young male died of unknown cause on his honeymoon. At autopsy his liver showed an intact well encapsulated hydatid cyst. The spherical cyst has been hemi-sected. The halves are seen side by side. The cyst wall is retracted from the liver at some points. Daughter cysts and brood capsules may be seen. The red material within the cyst is blood with accumulated there during dissection. Diagnosis is anaphylaxis. Echinococcus granulosus. Cyst in liver. A young male died of unknown cause on his honeymoon. At autopsy his liver showed an intact well encapsulated hydatid cyst. The spherical cyst has been hemi-sected. The halves are seen side by side. The cyst wall is retracted from the liver at some points. Daughter cysts and brood capsules may be seen. The red material within the cyst is blood with accumulated there during dissection. Diagnosis is anaphylaxis.
 123 Spirometra mansonoides Plerocercoid from experimental rat infection. The anterior portion i s thicker than the posterior. Relatively little detail can be seen in this slide. Compare with slides number 4 and 5. Spirometra mansonoides Plerocercoid from experimental rat infection. The anterior portion i s thicker than the posterior. Relatively little detail can be seen in this slide. Compare with slides number 4 and 5.
 124 Spirometra mansonoides. A group of plerocercoid larvae are shown. Spirometra mansonoides. A group of plerocercoid larvae are shown.
 125 Toxoplasma gondii. Ultrastructure of parasite in human heart muscle. Several organism are seen in this photograph; of these, one shows a double conoid suggesting that it is dividing. do-mitochondrion of parasite, mt-mitochondria of heart muscle cell w-cyst wall, z-z-membrane of myofibre Toxoplasma gondii. Ultrastructure of parasite in human heart muscle. Several organism are seen in this photograph; of these, one shows a double conoid suggesting that it is dividing. do-mitochondrion of parasite, mt-mitochondria of heart muscle cell w-cyst wall, z-z-membrane of myofibre
 126 Toxoplasma gondii. Ultrastructure of parasite in human heart muscle. The nucleus and pellicle are well demonstrated in this photograph. d-dumb-bell shaped bodies seen in and outside parasites, m-cardiac myofibre, tp-Convoluted tube with increased density in central core Toxoplasma gondii. Ultrastructure of parasite in human heart muscle. The nucleus and pellicle are well demonstrated in this photograph. d-dumb-bell shaped bodies seen in and outside parasites, m-cardiac myofibre, tp-Convoluted tube with increased density in central core
 127 Toxoplasma gondii. Ultrastructure of parasite in human heart muscle. This photograph shows the nucleus (n), the polar ring (4),the conoid (c), a convoluted tubule (tp) and the micropyle (mp) fairly well. Toxoplasma gondii. Ultrastructure of parasite in human heart muscle. This photograph shows the nucleus (n), the polar ring (4),the conoid (c), a convoluted tubule (tp) and the micropyle (mp) fairly well.
 128 Fasciola hepatica Adult embedded in the intestinal wall. The parasite presents as an oval to round mass limited by a spined cuticle. The parasitic parenchyma is punctuated by multiple sections through gut (reddish-brown). The two centrally located tubular structures, separated by a light staining muscular sucker, are part of the reproductive apparatus of the parasite. A marked inflammatory response is present in the adjacent host tissues and fresh red blood cells can be seen near the parasite. Fasciola hepatica Adult embedded in the intestinal wall. The parasite presents as an oval to round mass limited by a spined cuticle. The parasitic parenchyma is punctuated by multiple sections through gut (reddish-brown). The two centrally located tubular structures, separated by a light staining muscular sucker, are part of the reproductive apparatus of the parasite. A marked inflammatory response is present in the adjacent host tissues and fresh red blood cells can be seen near the parasite.
 129 Fasciola hepatica Adult embedded in the intestinal wall. The parasite presents as an oval to round mass limited by a spined cuticle. The parasitic parenchyma is punctuated by multiple sections through gut (reddish-brown). The two centrally located tubular structures, separated by a light staining muscular sucker, are part of the reproductive apparatus of the parasite. A marked inflammatory response is present in the adjacent host tissues and fresh red blood cells can be seen near the parasite. Fasciola hepatica Adult embedded in the intestinal wall. The parasite presents as an oval to round mass limited by a spined cuticle. The parasitic parenchyma is punctuated by multiple sections through gut (reddish-brown). The two centrally located tubular structures, separated by a light staining muscular sucker, are part of the reproductive apparatus of the parasite. A marked inflammatory response is present in the adjacent host tissues and fresh red blood cells can be seen near the parasite.
 130 Fasciola hepatica Adult embedded in the intestinal wall. The parasite presents as an oval to round mass limited by a spined cuticle. The parasitic parenchyma is punctuated by multiple sections through gut (reddish-brown). The two centrally located tubular structures, separated by a light staining muscular sucker, are part of the reproductive apparatus of the parasite. A marked inflammatory response is present in the adjacent host tissues and fresh red blood cells can be seen near the parasite. Fasciola hepatica Adult embedded in the intestinal wall. The parasite presents as an oval to round mass limited by a spined cuticle. The parasitic parenchyma is punctuated by multiple sections through gut (reddish-brown). The two centrally located tubular structures, separated by a light staining muscular sucker, are part of the reproductive apparatus of the parasite. A marked inflammatory response is present in the adjacent host tissues and fresh red blood cells can be seen near the parasite.
 131 Haemadipsa ornata. A terrestrial leech from North Borneo i s seen feeding on man. Note the characteristic feeding attitude and the pool of clear fluid excreted from the nephridial pores during meal. Haemadipsa ornata. A terrestrial leech from North Borneo i s seen feeding on man. Note the characteristic feeding attitude and the pool of clear fluid excreted from the nephridial pores during meal.
 132 Haemadipsa picta. North Borneo. One of several color variants of this species of terrestrial leech. Haemadipsa picta. North Borneo. One of several color variants of this species of terrestrial leech.
 133 Haemadipsa ornata. Bush climbing terrestrial leech from North Borneo. Haemadipsa ornata. Bush climbing terrestrial leech from North Borneo.
 134 Ctenocephalides canis. Male flea from a dog. Ctenocephalides canis. Male flea from a dog.
 135 Leishmania. Ulceration of hand. Costa Rica. Leishmania. Ulceration of hand. Costa Rica.
 136 Toxoplasma gondii. Human lung. Giemsa stain. Toxoplasma gondii. Human lung. Giemsa stain.
 137 Toxoplasma gondii. Human bone marrow. Toxoplasma gondii. Human bone marrow.
 138 Toxoplasma gondii. Human liver. High dry and oil immersion objectives. Toxoplasma gondii. Human liver. High dry and oil immersion objectives.
 139 Trypanosoma cruzi Romanas' sign in Chagas' disease. Left periorbital region swollen. Trypanosoma cruzi Romanas' sign in Chagas' disease. Left periorbital region swollen.
 140 Trypanosoma cruzi Xenodiagnostic technique. Taping caged laboratory reared reduviid bugs to arm of patient. Trypanosoma cruzi Xenodiagnostic technique. Taping caged laboratory reared reduviid bugs to arm of patient.
 141 Try panosoma gambiense. Blood smear. Try panosoma gambiense. Blood smear.
 142 Plasmodium. Sporozoites from mosquito. Plasmodium. Sporozoites from mosquito.
 143 Plasmodium cynomolgi. Exoerythrocytic stage in the liver of an experimentally infected monkey. Plasmodium cynomolgi. Exoerythrocytic stage in the liver of an experimentally infected monkey.
 144 Plasmodium vivax Rings and early trophozoite. Plasmodium vivax Rings and early trophozoite.
 145 Plasmodium vivax. Two young parasites are present in a single erythrocyte. Plasmodium vivax. Two young parasites are present in a single erythrocyte.
 146 Plasmodiumvivax Trophozoites. The irregular dispersion of cytoplasm is evidence of the mobility of the parasite Plasmodiumvivax Trophozoites. The irregular dispersion of cytoplasm is evidence of the mobility of the parasite
 147 Plasmodiumvivax Trophozoites. The irregular dispersion of cytoplasm is evidence of the mobility of the parasite Plasmodiumvivax Trophozoites. The irregular dispersion of cytoplasm is evidence of the mobility of the parasite
 148 Plasmodiumvivax Trophozoites. The irregular dispersion of cytoplasm is evidence of the mobility of the parasite Plasmodiumvivax Trophozoites. The irregular dispersion of cytoplasm is evidence of the mobility of the parasite
 149 Plasmodium malariae Rings Plasmodium malariae Rings
 150 Plasmodium malariae. Two rings in one erythrocyte. Plasmodium malariae. Two rings in one erythrocyte.
 151 Plasmodium malariae. Ring. Plasmodium malariae. Ring.
 152 Plasmodium malariae. Early trophozoite and ring (?) with double chromatin dots. Plasmodium malariae. Early trophozoite and ring (?) with double chromatin dots.
 153 Plasmodium malariae. Early schizogony. Plasmodium malariae. Early schizogony.
 154 Plasmodium malariae. Schizont with at least seven nuclear masses and two earlier stages in other erythrocytes. Plasmodium malariae. Schizont with at least seven nuclear masses and two earlier stages in other erythrocytes.
 155 Plasmodium malariae. Gametocyte. Plasmodium malariae. Gametocyte.
 156 Isospora felis. oocyst with undivided sporoblast. This large coccidian from the cat measures approximately thirty microns in diameter. Isospora felis. oocyst with undivided sporoblast. This large coccidian from the cat measures approximately thirty microns in diameter.
 157 Isospora felis. oocyst with two sporocysts. Isospora felis. oocyst with two sporocysts.
 158 Isospora felis Sporozoite formation has begun. Isospora felis Sporozoite formation has begun.
 159 Isospora felis. The oocyst has been penetrated by iodine and the two sporocysts stained. Isospora felis. The oocyst has been penetrated by iodine and the two sporocysts stained.
 160 Polymorphonuclear leucocyte This leucocyte had been identified as a cyst of Entamoeba histolytica during examination of a stool. Polymorphonuclear leucocyte This leucocyte had been identified as a cyst of Entamoeba histolytica during examination of a stool.
 161 Echinococcus granulosus Adult. The hooks on the scolex appear as a dark ring. Numerous eggs are present in the terminal proglottid. Echinococcus granulosus Adult. The hooks on the scolex appear as a dark ring. Numerous eggs are present in the terminal proglottid.
 162 Echinococcus granulosus. Cyst in lung showing the laminated and proliferative layers. Daughter cysts contain scolices many of which have degenerated as evidenced by the presence of free hooks. Echinococcus granulosus. Cyst in lung showing the laminated and proliferative layers. Daughter cysts contain scolices many of which have degenerated as evidenced by the presence of free hooks.
 163 Echinococcus granulosus. Hydatid sand. Numerous protoscolices, some free, some in daughter cysts accumulate at the low points of any hydatid cyst. When the free protoscolices evert, the suckers may protrude to give a cross-like appearance. Echinococcus granulosus. Hydatid sand. Numerous protoscolices, some free, some in daughter cysts accumulate at the low points of any hydatid cyst. When the free protoscolices evert, the suckers may protrude to give a cross-like appearance.
 164 Echinococcus granulosus. Hydatid sand. Numerous protoscolices, some free, some in daughter cysts accumulate at the low points of any hydatid cyst. When the free protoscolices evert, the suckers may protrude to give a cross-like appearance. Echinococcus granulosus. Hydatid sand. Numerous protoscolices, some free, some in daughter cysts accumulate at the low points of any hydatid cyst. When the free protoscolices evert, the suckers may protrude to give a cross-like appearance.
 165 Echinococcus multilocularis. Eskimo liver, formalin fixed. In the lighter regions, the liver parenchyma has been replaced by the parasite. Echinococcus multilocularis. Eskimo liver, formalin fixed. In the lighter regions, the liver parenchyma has been replaced by the parasite.
 166 Echinococcus multilocularis. H. & E. stained section made from Eskimo liver shown on slide 165. At one side, the liver and inflammatory cells are seen. The parasites appear as irregular!' lined cystic spaces. Compare with slides numbered 1, 2 and 3. Echinococcus multilocularis. H. & E. stained section made from Eskimo liver shown on slide 165. At one side, the liver and inflammatory cells are seen. The parasites appear as irregular!' lined cystic spaces. Compare with slides numbered 1, 2 and 3.
 167 Hymenolepis nana. Scolex. Hooks and suckers are visible. Hymenolepis nana. Scolex. Hooks and suckers are visible.
 168 Hymenolepis diminuta. Mature proglottids. Typically mature . hymenolepid proglottids have three testes and lateral genital pores all of which open to the same side. Hymenolepis diminuta. Mature proglottids. Typically mature . hymenolepid proglottids have three testes and lateral genital pores all of which open to the same side.
 169 Hymenolepis diminuta. Mature proglottids. Typically mature . hymenolepid proglottids have three testes and lateral genital pores all of which open to the same side. Hymenolepis diminuta. Mature proglottids. Typically mature . hymenolepid proglottids have three testes and lateral genital pores all of which open to the same side.
 170 Hymenolepis Eggs. Note hooks. Hymenolepis Eggs. Note hooks.
 171 Hymenolepis diminuta. C:ysticercoid larvae, from an insect intermediate host. Hymenolepis diminuta. C:ysticercoid larvae, from an insect intermediate host.
 172 Hymenolepis diminuta. C:ysticercoid larvae, from an insect intermediate host. Hymenolepis diminuta. C:ysticercoid larvae, from an insect intermediate host.
 173 Dipylidium caninum. Maturing proglottid shows double set of sexual organs, with a lateral genital pore on each side. Dipylidium caninum. Maturing proglottid shows double set of sexual organs, with a lateral genital pore on each side.
 174 Dipylidium caninum Gravid proglottid again showing the double set of genital organs. The masses within the proglottids are groups of eggs. Dipylidium caninum Gravid proglottid again showing the double set of genital organs. The masses within the proglottids are groups of eggs.
 175 Schistosoma mansoni. Human liver with a single visible pseudotubercle surrounded by hemorrhage. Schistosoma mansoni. Human liver with a single visible pseudotubercle surrounded by hemorrhage.
 176 Schistosoma mansoni. Portal fibrosis. Case of pipestem fibrosis (see slide 24). Schistosoma mansoni. Portal fibrosis. Case of pipestem fibrosis (see slide 24).
 177 Schistosoma mansoni Granuloma around egg in a human lung. The egg shell is clearly visible in the center of the fibrosing granuloma. Especially noteworthy are the blood filled angiomatoids. Schistosoma mansoni Granuloma around egg in a human lung. The egg shell is clearly visible in the center of the fibrosing granuloma. Especially noteworthy are the blood filled angiomatoids.
 178 Fasciola gigantic Whole mount. Note the typical anterior cone and branched gut. For size concepts see slide number 117.. Fasciola gigantic Whole mount. Note the typical anterior cone and branched gut. For size concepts see slide number 117..
 179 Ascaris. Adults. Portion of pig small intestines containing numerous adult ascarids. Ascaris. Adults. Portion of pig small intestines containing numerous adult ascarids.
 180 Ascaris. Female reproductive system. The system i s essentially composed of two tubes which fuse to form a single vagina. Specific sections function as ovaries, oviducts and uteri. Compare with slide number 43, which shows the female in cross section. Ascaris. Female reproductive system. The system i s essentially composed of two tubes which fuse to form a single vagina. Specific sections function as ovaries, oviducts and uteri. Compare with slide number 43, which shows the female in cross section.
 181 Ascaris lumbricoides. Embryonated, decorticated eggs. These eggs were permitted to develop embryos before being photographed, in order to demonstrate their viability. Ascaris lumbricoides. Embryonated, decorticated eggs. These eggs were permitted to develop embryos before being photographed, in order to demonstrate their viability.
 182 Toxocara Embryonated eggs. Toxocara Embryonated eggs.
 183 Toxocara Larvae in squash preparation of brain of an experimentally infected mouse. Toxocara Larvae in squash preparation of brain of an experimentally infected mouse.
 184 Trichinella spiralis Parts of two very young larvae are seen invading muscle. Trichinella spiralis Parts of two very young larvae are seen invading muscle.
 185 Angiostrongylus cantonensis. These nematodes are now known to cause eosinophilic meningitis in man. Angiostrongylus cantonensis. These nematodes are now known to cause eosinophilic meningitis in man.
 186 Planarian. Intermediate host of Angiostrongylus cantonensis. Planarian. Intermediate host of Angiostrongylus cantonensis.
 187 Slug Another intermediate host of Angiostrongyl us cantonensis. Slug Another intermediate host of Angiostrongyl us cantonensis.
 188 Phthirus pubis Crab lice have a relatively narrow head, a broad thorax and crab-like claws. Respiratory spiracles and trachea are clearly shown in slide Phthirus pubis Crab lice have a relatively narrow head, a broad thorax and crab-like claws. Respiratory spiracles and trachea are clearly shown in slide
 189 Phthirus pubis Crab lice have a relatively narrow head, a broad thorax and crab-like claws. Respiratory spiracles and trachea are clearly shown in slide Phthirus pubis Crab lice have a relatively narrow head, a broad thorax and crab-like claws. Respiratory spiracles and trachea are clearly shown in slide
 190 Phthirus pubis. A louse egg (nit) attached to hair. Phthirus pubis. A louse egg (nit) attached to hair.
 191 Latrodectus mactans Poison fang from a black widow spider. Latrodectus mactans Poison fang from a black widow spider.
 192 Demodex folliculorum. More or less complete longitudinal sections through three parasites in hair follicles. Demodex folliculorum. More or less complete longitudinal sections through three parasites in hair follicles.
 193 Linguatu1id The anterior hooks and annulations of the body are well demonstrated. Linguatu1id The anterior hooks and annulations of the body are well demonstrated.
 194 Hippeutis umbilicalis (China). In appropriate areas, these snails may serve as intermediate hosts to Fasciolopsis buski. Hippeutis umbilicalis (China). In appropriate areas, these snails may serve as intermediate hosts to Fasciolopsis buski.
 195 Thiara granifera. (Hawaii). In appropriate areas, this species may serve as an intermediate host for Paragonimus westermani. Thiara granifera. (Hawaii). In appropriate areas, this species may serve as an intermediate host for Paragonimus westermani.
 196 Semisulcospira libertine. (Formosa). In appropriate areas, this species may serve as an intermediate host for Paragonimus. Semisulcospira libertine. (Formosa). In appropriate areas, this species may serve as an intermediate host for Paragonimus.
 197 Littorina innorata (Gulf of Mexico). In appropriate areas, this species may serve as an intermediate host of bird schistosomes. Littorina innorata (Gulf of Mexico). In appropriate areas, this species may serve as an intermediate host of bird schistosomes.
 198 Rat, armored. (Panama). Known to carry natural infections of Leishmania. Rat, armored. (Panama). Known to carry natural infections of Leishmania.
 199 Rat, spiny. (Panama). Known to carry natural infections of Leishmania. Rat, spiny. (Panama). Known to carry natural infections of Leishmania.
 200 Onchocerca volvulus. Section through entire nodule stained with H. and E. See slides 37-39. Onchocerca volvulus. Section through entire nodule stained with H. and E. See slides 37-39.
 201 Entamoeba coli. Cysts. Iodine stain. More than four nuclei are seen in the cysts. Entamoeba coli. Cysts. Iodine stain. More than four nuclei are seen in the cysts.
 202 Entamoeba coli. Trophozoite. Iron hematoxylin stain. A karyosome (endosome) within the nucleus is eccentric and large. Entamoeba coli. Trophozoite. Iron hematoxylin stain. A karyosome (endosome) within the nucleus is eccentric and large.
 203 Entamoeba coli. Trophozoite. Iron hematoxylin stain. A karyosome (endosome) within the nucleus is eccentric and large. Entamoeba coli. Trophozoite. Iron hematoxylin stain. A karyosome (endosome) within the nucleus is eccentric and large.
 204 Entamoeba coil Precystic form. Iron hematoxylin stain. A single nucleus and a large pale glycogen vacuole are present. These forms are very similar to those which might be present in similar stages of E. histolytica and should not be used for diagnosis. Entamoeba coil Precystic form. Iron hematoxylin stain. A single nucleus and a large pale glycogen vacuole are present. These forms are very similar to those which might be present in similar stages of E. histolytica and should not be used for diagnosis.
 205 Entamoeba histolytica. Small race trophozoite, iron hematoxylin stain. The karyosome is small and centrally located. The nuclear chromatin consists of small, fairly regular beads. Entamoeba histolytica. Small race trophozoite, iron hematoxylin stain. The karyosome is small and centrally located. The nuclear chromatin consists of small, fairly regular beads.
 206 Entamoeba histolytica. Trophozoite. The karyosome is small, slightly eccentric (in spite of the textbooks) and the nuclear chromatin is a fine even line. Entamoeba histolytica. Trophozoite. The karyosome is small, slightly eccentric (in spite of the textbooks) and the nuclear chromatin is a fine even line.
 207 Entamoeba histolytica. Trophozoite. Entamoeba histolytica. Trophozoite.
 208 Entamoeba histolytica. Trophozoites. Iron hematoxylin stain. Each specimen has engulfed red blood cells which stain darkly. Entamoeba histolytica. Trophozoites. Iron hematoxylin stain. Each specimen has engulfed red blood cells which stain darkly.
 209 Entamoeba histolytica. Trophozoites. Iron hematoxylin stain. Each specimen has engulfed red blood cells which stain darkly. Entamoeba histolytica. Trophozoites. Iron hematoxylin stain. Each specimen has engulfed red blood cells which stain darkly.
 210 Entamoeba histolytica. Trophozoites. Iron hematoxylin stain. Each specimen has engulfed red blood cells which stain darkly. Entamoeba histolytica. Trophozoites. Iron hematoxylin stain. Each specimen has engulfed red blood cells which stain darkly.
 211 Entamoeba histolytica. Cyst with at least three nuclei and chromatoidal bar. Entamoeba histolytica. Cyst with at least three nuclei and chromatoidal bar.
 212 Entamoeba histolytica. Cyst with four nuclei and chromatoidal bars. Entamoeba histolytica. Cyst with four nuclei and chromatoidal bars.
 213 Entamoeba histolytica. Human appendix. Low and high power views of a highly inflamed appendix containing trophozoites. H & E. stain. Entamoeba histolytica. Human appendix. Low and high power views of a highly inflamed appendix containing trophozoites. H & E. stain.
 214 Entamoeba histolytica. Human appendix. Low and high power views of a highly inflamed appendix containing trophozoites. H & E. stain. Entamoeba histolytica. Human appendix. Low and high power views of a highly inflamed appendix containing trophozoites. H & E. stain.
 215 Giardia lamblia Cysts. Iron hematoxylin stain. Two cysts are present. Giardia lamblia Cysts. Iron hematoxylin stain. Two cysts are present.
 216 Giardia lamblia. Trophozoite. Iron hematoxylin stain. Giardia lamblia. Trophozoite. Iron hematoxylin stain.
 217 Dientamoebafragilis Binucleate troph. Iron hematoxylin stain. Dientamoebafragilis Binucleate troph. Iron hematoxylin stain.
 218 Endolimax nana. Cyst. Iron hematoxylin stain. Endolimax nana. Cyst. Iron hematoxylin stain.
 219 Trichinella spiralis. Periorbital edema in trichinosis. Trichinella spiralis. Periorbital edema in trichinosis.
 220 Trichinella spiralis. Subungual splinter hemorrhages in trichinosis. Trichinella spiralis. Subungual splinter hemorrhages in trichinosis.
 221 Trichinella spiralis. Larvae within an adult female embedded in a mouse intestine. Hematoxylin-eosin stain. Trichinella spiralis. Larvae within an adult female embedded in a mouse intestine. Hematoxylin-eosin stain.
 222 Trichinella spiralis. Hematoxylin-eosin stain. Old cyst undergoing degeneration in muscle. Trichinella spiralis. Hematoxylin-eosin stain. Old cyst undergoing degeneration in muscle.
 223 Trichinella spiralis. Hematoxylin-eosin stain. Old cyst undergoing calcification in muscle. Trichinella spiralis. Hematoxylin-eosin stain. Old cyst undergoing calcification in muscle.
 224 Trichinella spiralis. In feces. Trichinella spiralis. In feces.
 225 Schistosoma mansoni. Lateral spined egg in stool. Schistosoma mansoni. Lateral spined egg in stool.
 226 Schistosoma haematobium Terminal seined egg. Schistosoma haematobium Terminal seined egg.
 227 Fasciola hepatica Egg in stool. Note that the operculum on one has separated from the remainder of the egg shell. Fasciola hepatica Egg in stool. Note that the operculum on one has separated from the remainder of the egg shell.
 228 Schistosoma mansoni Male, anterior end, showing suckers, testes and beginning of gynecophoric canal. Schistosoma mansoni Male, anterior end, showing suckers, testes and beginning of gynecophoric canal.
 229 Schistosoma mansoni. Appendix with adult male and female worms in mesoappendiceal vein and numerous granulomata surrounding eggs in the wall. Schistosoma mansoni. Appendix with adult male and female worms in mesoappendiceal vein and numerous granulomata surrounding eggs in the wall.
 230 Schistosoma mansoni Australorbis glabratus. Intermediate hosts for Schistosoma mansoni. Shells, from Minas Gerais and St. Lucia respectively. Schistosoma mansoni Australorbis glabratus. Intermediate hosts for Schistosoma mansoni. Shells, from Minas Gerais and St. Lucia respectively.
 231 Schistosoma mansoni Australorbis glabratus. Intermediate hosts for Schistosoma mansoni. Shells, from Minas Gerais and St. Lucia respectively. Schistosoma mansoni Australorbis glabratus. Intermediate hosts for Schistosoma mansoni. Shells, from Minas Gerais and St. Lucia respectively.
 232 Schistosoma mansoni. Biomphalaria alexandrimus. Intermediate host for Schistosoma mansoni. Shells from Egypt. Schistosoma mansoni. Biomphalaria alexandrimus. Intermediate host for Schistosoma mansoni. Shells from Egypt.
 233 Trichuris trichiura Egg i n stool, iodine stained. Trichuris trichiura Egg i n stool, iodine stained.
 234 Taenia  Unstained egg. Taenia Unstained egg.
 235 Hookworm Eggs. Hookworm Eggs.
 236 Hookworm Eggs. Hookworm Eggs.
 237 Balantidium coli Trophozoites within intestinal wall. Balantidium coli Trophozoites within intestinal wall.
 238 Balantidium coli. Low and high powered views of trophozoites within inflamed appendix. H&E stain. Balantidium coli. Low and high powered views of trophozoites within inflamed appendix. H&E stain.
 239 Balantidium coli. Low and high powered views of trophozoites within inflamed appendix. H&E stain. Balantidium coli. Low and high powered views of trophozoites within inflamed appendix. H&E stain.
 240 Trypanosoma cruzi. Low and high power views of leptomonads in culture, arranged in a rosette. Trypanosoma cruzi. Low and high power views of leptomonads in culture, arranged in a rosette.
 241 Trypanosoma cruzi. Low and high power views of leptomonads in culture, arranged in a rosette. Trypanosoma cruzi. Low and high power views of leptomonads in culture, arranged in a rosette.
 242 Leishmania. Ulcer of leg. Costa Rica. Leishmania. Ulcer of leg. Costa Rica.
 243 Toxoplasma gondii Pseudocyst in mouse brain. Toxoplasma gondii Pseudocyst in mouse brain.
 244 Toxoplasma gondii Motile forms from mouse peritoneum. Toxoplasma gondii Motile forms from mouse peritoneum.
 245 Enterobius vermicularis Egg at various magnifications. The embryo is seen at highest power. Enterobius vermicularis Egg at various magnifications. The embryo is seen at highest power.
 246 Enterobius vermicularis Egg at various magnifications. The embryo is seen at highest power. Enterobius vermicularis Egg at various magnifications. The embryo is seen at highest power.
 247 Enterobius vermicularis Egg at various magnifications. The embryo is seen at highest power. Enterobius vermicularis Egg at various magnifications. The embryo is seen at highest power.
 248 Ascaris lumbricoides. Egg in mesentery. The egg shell, without the mamillated coat, can be seen. Ascaris lumbricoides. Egg in mesentery. The egg shell, without the mamillated coat, can be seen.
 249 Ascaris lumbricoides. Egg in mesentery. The egg shell, without the mamillated coat, can be seen. Ascaris lumbricoides. Egg in mesentery. The egg shell, without the mamillated coat, can be seen.
 250 Ascaris lumbricoides. Egg in mesentery. The egg shell, without the mamillated coat, can be seen. Ascaris lumbricoides. Egg in mesentery. The egg shell, without the mamillated coat, can be seen.
 251 Diphyllobothrium latum Egg in stool showing the operculum and a knob at the abopercular end. Diphyllobothrium latum Egg in stool showing the operculum and a knob at the abopercular end.
 252 Dipylidium caninum. Ova in packets within gravid proglottid. Dipylidium caninum. Ova in packets within gravid proglottid.
 253 Echinococcus granulosus Cyst in mesentery. Echinococcus granulosus Cyst in mesentery.
 254 Fasciola gigantica. Human liver showing periportal fibrosis due to worms in biliary ducts. Fasciola gigantica. Human liver showing periportal fibrosis due to worms in biliary ducts.
 255 Plasmodium falciparum. Pigment in human spleen. Plasmodium falciparum. Pigment in human spleen.
 256 Plasmodium vivax Schizont in peripheral blood showing early stages of division. Plasmodium vivax Schizont in peripheral blood showing early stages of division.
 257 Plasmodium vivax. Division of parasite has progressed. Plasmodium vivax. Division of parasite has progressed.
 258 Plasmodium vivax Gametocytes. Plasmodium vivax Gametocytes.
 259 Plasmodium falciparum. Crescentic gametocytes. Plasmodium falciparum. Crescentic gametocytes.
 260 Plasmodium Oocysts on wall of mosquito stomach. The spherical objects peripheral to the stomach wall are the oocysts within which Sporozoites are formed. Plasmodium Oocysts on wall of mosquito stomach. The spherical objects peripheral to the stomach wall are the oocysts within which Sporozoites are formed.
 261 Plasmodium falciparum. Thick smear. The ring stages appear as small dots to which an apron of cytoplasm is attached more or less firmly. Plasmodium falciparum. Thick smear. The ring stages appear as small dots to which an apron of cytoplasm is attached more or less firmly.
 262 Wuchereria bancrofti. Elephantiasis of legs. Wuchereria bancrofti. Elephantiasis of legs.
 263 Ancylostoma caninum. Three pairs of hooks are seen in the mouth of this hookworm. Ancylostoma caninum. Three pairs of hooks are seen in the mouth of this hookworm.
 264 Gasterophilus intestinalis Larval infection of horse stomach. Various fly larvae may infect different body tissues, a condition know as myiasis. Gasterophilus intestinalis Larval infection of horse stomach. Various fly larvae may infect different body tissues, a condition know as myiasis.
 265 Echinococcus multilocularis. Gerbil liver, high and low magnifications. Echinococcus multilocularis. Gerbil liver, high and low magnifications.
 266 Echinococcus multilocularis. Gerbil liver, high and low magnifications. Echinococcus multilocularis. Gerbil liver, high and low magnifications.
 267 Ascaris. Mouse lungs showing the cumulative effect of simultaneous infection with ascarids and a pneumonic virus. The laterally placed lungs have been subjected to either Ascaris or virus. The central lung suffered both infections. Ascaris. Mouse lungs showing the cumulative effect of simultaneous infection with ascarids and a pneumonic virus. The laterally placed lungs have been subjected to either Ascaris or virus. The central lung suffered both infections.
 268 Onchocerca volvulus. Procuring a skin snip for diagnosis. Onchocerca volvulus. Procuring a skin snip for diagnosis.
 269 Wuchereria bancrofti. Microfilaria. Wuchereria bancrofti. Microfilaria.
 270 Echinococcus granulosus In a monkey. Echinococcus granulosus In a monkey.
 271 Echinococcus granulosus In a monkey. Echinococcus granulosus In a monkey.
 272 Enterobius vermicularis Anterior portion of male showing cervical alae. Iodine stained. Enterobius vermicularis Anterior portion of male showing cervical alae. Iodine stained.
 273 Enterobius vermicularis. Posterior end of male showing genital organs. Iodine stained. Enterobius vermicularis. Posterior end of male showing genital organs. Iodine stained.
 274 Trichuris trichiura. Low power view of dog intestine, showing  multiple sections through adult worms. See slides 7 and 8. Trichuris trichiura. Low power view of dog intestine, showing multiple sections through adult worms. See slides 7 and 8.
 275 Pollen. Pollen found in spinal fluid and misinterpreted as an Ascaris egg. Pollen. Pollen found in spinal fluid and misinterpreted as an Ascaris egg.
 276 Ascaris lumbricoides. Infertile egg, mamillated but distorted, being more elongate and rectangular than normal. Ascaris lumbricoides. Infertile egg, mamillated but distorted, being more elongate and rectangular than normal.
 277 Ascaris lumbricoides. Decorticated egg. Iodine stained. Ascaris lumbricoides. Decorticated egg. Iodine stained.
 278 Dirofilaria. Lung nodule with cross section of filarial nematodes, probably adolescent Dirofilaria. Dirofilaria. Lung nodule with cross section of filarial nematodes, probably adolescent Dirofilaria.
 279 Dirofilaria. Lung nodule with cross section of filarial nematodes, probably adolescent Dirofilaria. Dirofilaria. Lung nodule with cross section of filarial nematodes, probably adolescent Dirofilaria.
 280 Bertiella studeri. Segments from human case. Bertiella studeri. Segments from human case.
 281 Bertiella studeri. Segments from human case. Bertiella studeri. Segments from human case.
 282 Bertiella studeri. Segments from human case. Bertiella studeri. Segments from human case.
 283 Bertiella studeri. Segments from human case. Bertiella studeri. Segments from human case.
 284 Bertiella studeri. Segments from human case. Bertiella studeri. Segments from human case.
 285 Bertiella studeri. Segments from human case. Bertiella studeri. Segments from human case.
 286 Bertiella studeri. Segments from human case. Bertiella studeri. Segments from human case.
 287 Bertiella studeri. Segments from human case. Bertiella studeri. Segments from human case.
 288 Mesocestoides. Segments from human case. Mesocestoides. Segments from human case.
 289 Mesocestoides. Segments from human case. Mesocestoides. Segments from human case.
 290 Echinococcus granulosus. Sand from cyst in human liver showing loose and grouped hooks. Echinococcus granulosus. Sand from cyst in human liver showing loose and grouped hooks.
 291 Echinococcus multilocularis. Adult, whole mount. Echinococcus multilocularis. Adult, whole mount.
 292 Echinococcus multilocularis. Adult, whole mount. Echinococcus multilocularis. Adult, whole mount.
 293 Schistosoma haematobium Adults and eggs in human testicle. Schistosoma haematobium Adults and eggs in human testicle.
 294 Schistosoma haematobium Adults and eggs in human testicle. Schistosoma haematobium Adults and eggs in human testicle.
 295 Schistosoma haematobium Adults and eggs in human testicle. Schistosoma haematobium Adults and eggs in human testicle.
 296 Toxoplasma gondii. Explanation of methylene blue test. Toxoplasma gondii. Explanation of methylene blue test.
 297 Besnoitia jellisoni. Cysts in low and high powers. Besnoitia jellisoni. Cysts in low and high powers.
 298 Besnoitia jellisoni. Cysts in low and high powers. Besnoitia jellisoni. Cysts in low and high powers.
 299 Entamoeba histolytica. Cysts in stool. Chlorazol black stain. Entamoeba histolytica. Cysts in stool. Chlorazol black stain.
 300 Entamoeba histolytica. Cysts in stool. Chlorazol black stain. Entamoeba histolytica. Cysts in stool. Chlorazol black stain.
 301 Entamoeba histolytica. Cysts in stool. Chlorazol black stain. Entamoeba histolytica. Cysts in stool. Chlorazol black stain.
 302 Entamoeba coil. Cyst in stool, Chlorazol black stain. Entamoeba coil. Cyst in stool, Chlorazol black stain.
 303 Endolimax nana. Cyst with 4 nuclei. Chlorazol black stain. Endolimax nana. Cyst with 4 nuclei. Chlorazol black stain.
 304 Iodamoeba butschlii, one nucleus and large glycogen vacuole. Chlorazol black stain. Iodamoeba butschlii, one nucleus and large glycogen vacuole. Chlorazol black stain.
 305 Dientamoeba fragilis. Human appendix, low and high powers. Iron hematoxylin stain. Dientamoeba fragilis. Human appendix, low and high powers. Iron hematoxylin stain.
 306 Dientamoeba fragilis. Human appendix, low and high powers. Iron hematoxylin stain. Dientamoeba fragilis. Human appendix, low and high powers. Iron hematoxylin stain.
 307 Giardia lamblia. Cyst in stool. Chlorazol black stain. Giardia lamblia. Cyst in stool. Chlorazol black stain.
 308 Giardia lamblia. Troph in stool. Chlorazol black stain. Giardia lamblia. Troph in stool. Chlorazol black stain.
 309 Xenopsylla cheopis. Whole mount of female. Xenopsylla cheopis. Whole mount of female.
 310 Schistosoma mansoni. Egg in stool with lateral spine hidden beneath egg mass. Schistosoma mansoni. Egg in stool with lateral spine hidden beneath egg mass.
 311 Schistosoma mansoni. Same egg moved so that lateral spine is visible. Schistosoma mansoni. Same egg moved so that lateral spine is visible.
 312 Schistosoma mansoni. Cuticle of male showing characteristic tubercles. Schistosoma mansoni. Cuticle of male showing characteristic tubercles.
 313 Onchocerca volvulus. High power view showing microfilariae in nodule of fibrotic tissue adjacent to adult. Onchocerca volvulus. High power view showing microfilariae in nodule of fibrotic tissue adjacent to adult.
 314 Onchocerca volvulus. Microfilariae in subcutaneous tissue. Onchocerca volvulus. Microfilariae in subcutaneous tissue.
 315 Onchocerca volvulus. Microfilariae in subcutaneous tissue. Onchocerca volvulus. Microfilariae in subcutaneous tissue.
 316 Dracunculus insignis. Adults in the leg of an otter. Dracunculus insignis. Adults in the leg of an otter.
 317 F i1aria Skin test. Compare reaction, high on forearm, with the bland reaction about the distally placed control injection. F i1aria Skin test. Compare reaction, high on forearm, with the bland reaction about the distally placed control injection.
 318 Wuchereria bancrofti. elephantiasis of external genitalia. Wuchereria bancrofti. elephantiasis of external genitalia.
 319 Microfilaria. Sheathed. Microfilaria. Sheathed.
 320 Capillaria hepatica. Gross pathology in liver of Peromyscus Capillaria hepatica. Gross pathology in liver of Peromyscus
 321 Echinococcus granulosus. Massive infection in gut of dog. Echinococcus granulosus. Massive infection in gut of dog.
 322 Multiceps serialis. Cysts in rabbit hind quarters. Multiceps serialis. Cysts in rabbit hind quarters.
 323 Taenia. Mature proglottid. Taenia. Mature proglottid.
 324 Hymenolepis diminuta. Gravid proglottid. Hymenolepis diminuta. Gravid proglottid.
 325 Heterophyes. Whole mount. Heterophyes. Whole mount.
 326 Heterophyes Eggs within adult fluke Heterophyes Eggs within adult fluke
 327 Schistosoma mansoni Weir placed across small stream and fitted with apparatus which instills molluscicide according to rate of water flow (Puerto Rico). Schistosoma mansoni Weir placed across small stream and fitted with apparatus which instills molluscicide according to rate of water flow (Puerto Rico).
 328 Schistosoma mansoni Weir placed across small stream and fitted with apparatus which instills molluscicide according to rate of water flow (Puerto Rico). Schistosoma mansoni Weir placed across small stream and fitted with apparatus which instills molluscicide according to rate of water flow (Puerto Rico).
 329 Schistosoma mansoni, apparatus used on small stream i n Puerto Rico. Schistosoma mansoni, apparatus used on small stream i n Puerto Rico.
 330 Schistosoma mansoni. Spraying stream with molluscicide in Puerto Rico. Schistosoma mansoni. Spraying stream with molluscicide in Puerto Rico.
 331 Schistosoma mansoni. Apparatus used to strain cercariae from stream for quantitative measurement of parasitic population prior to and after mollusciciding. (Puerto Rico). Schistosoma mansoni. Apparatus used to strain cercariae from stream for quantitative measurement of parasitic population prior to and after mollusciciding. (Puerto Rico).
 332 Schistosoma mansoni. House equipped with basic plumbing but nearby stream polluted because bridge is local social point where women gather to gossip or wash clothes and men play cards. Schistosoma mansoni. House equipped with basic plumbing but nearby stream polluted because bridge is local social point where women gather to gossip or wash clothes and men play cards.
 333 Trematode larval stages In snail tissue. Trematode larval stages In snail tissue.
 334 Trematode larval stages In snail tissue. Trematode larval stages In snail tissue.
 335 Trematode larval stage  Dissected free from snail and stained. Trematode larval stage Dissected free from snail and stained.
 336 Trematode larval stage  Dissected free from snail and stained. Trematode larval stage Dissected free from snail and stained.
 337 Schistosoma. Forked tailed cercaria. Schistosoma. Forked tailed cercaria.
 338 Plasmodium falciparum. Numerous infected red blood cells in brain capillary. Plasmodium falciparum. Numerous infected red blood cells in brain capillary.
 339 Sarcocystis. Gross pathology in a duck. Sarcocystis. Gross pathology in a duck.
 340 Plasmodium malariae. Band form in erythrocyte. Plasmodium malariae. Band form in erythrocyte.
 341 Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain. Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain.
 342 Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain. Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain.
 343 Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain. Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain.
 344 Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain. Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain.
 345 Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain. Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain.
 346 Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain. Entamoeba coil. Cysts in stool, showing various numbers of nuclei, hematoxylin stain.
 347 Entamoeba coil. Cyst in stool with splinter-like chromatoidal body.Trichrome stain. Entamoeba coil. Cyst in stool with splinter-like chromatoidal body.Trichrome stain.
 348 Multiple infections. Entamoeba coli and Iodamoeba butschlii. Cysts in stool. Trichrome stain. Multiple infections. Entamoeba coli and Iodamoeba butschlii. Cysts in stool. Trichrome stain.
 349 Entamoeba histolytica. Small race troPhozoite in stool. Trichrome stain. Entamoeba histolytica. Small race troPhozoite in stool. Trichrome stain.
 350 Entamoeba histolytica. Cyst in stool. Trichrome stain. Entamoeba histolytica. Cyst in stool. Trichrome stain.
 351 Endolimax nana Cyst in stool. Trichrome stain. Endolimax nana Cyst in stool. Trichrome stain.
 352 Iodamoeba butschlii. Cyst in stool. Trichrome stain. Iodamoeba butschlii. Cyst in stool. Trichrome stain.
 353 Entamoeba gingivalis Trophozoite among epithelial cells. Trichrome stain. Entamoeba gingivalis Trophozoite among epithelial cells. Trichrome stain.
 354 Blastocystis. In stool. Trichrome stain. Blastocystis. In stool. Trichrome stain.
 355 Chilomastix mesnili. Cyst in stool, trichrome stain. Chilomastix mesnili. Cyst in stool, trichrome stain.
 356 Charcot-Leyden Crystals In stool. Trichrome stain. Charcot-Leyden Crystals In stool. Trichrome stain.
 357 Fasciolopsis buski Egg in stool. Fasciolopsis buski Egg in stool.
 358 Enterobius vermicularis. Egg in scotch tape preparation. Enterobius vermicularis. Egg in scotch tape preparation.
 359 Endolimax nana. Uni nucleate trophozoite. Endolimax nana. Uni nucleate trophozoite.
 360 Schistosoma mansoni. The Dona Ana stream in Puerto Rico with foot paths leading through cercaria-bearing waters. Schistosoma mansoni. The Dona Ana stream in Puerto Rico with foot paths leading through cercaria-bearing waters.
 361 Schistosoma mansoni. Straining cercariae from polluted waters. Old model apparatus. Schistosoma mansoni. Straining cercariae from polluted waters. Old model apparatus.
 362 Schistosoma mansoni. Mollusciciding operation in Puerto Rico. Putting oil drums with molluscicide in place at a stream. Schistosoma mansoni. Mollusciciding operation in Puerto Rico. Putting oil drums with molluscicide in place at a stream.
 363 Schistosoma mansoni Control by construction of concrete culve in Guanica swamp. Schistosoma mansoni Control by construction of concrete culve in Guanica swamp.
 364 Schistosoma mansoni. Marissa cornuatis. A voracious snail used to control Australorbis. Schistosoma mansoni. Marissa cornuatis. A voracious snail used to control Australorbis.
 365 Schistosoma man soni. Spraying molluscicide. Schistosoma man soni. Spraying molluscicide.
 366 Schistosoma mansoni. Destruction of lily leaves by Marissa Schistosoma mansoni. Destruction of lily leaves by Marissa
 367 Thelazia californiensis. In eye of dog. Thelazia californiensis. In eye of dog.
 368 Plasmodium vivax. Trophozoites. Plasmodium vivax. Trophozoites.
 369 Plasmodium vivax. Presegmenter Plasmodium vivax. Presegmenter
 370 Plasmodium vivax. Trophozoite. Plasmodium vivax. Trophozoite.
 371 Plasmodium vivax. Large trophozoite. Plasmodium vivax. Large trophozoite.
 372 Plasmodium vivax. Gametocytes. Plasmodium vivax. Gametocytes.
 373 Plasmodium vivax. Gametocytes. Plasmodium vivax. Gametocytes.
 374 Toxocara canis Larva in unstained crush preparation of mouse brain. Toxocara canis Larva in unstained crush preparation of mouse brain.
 375 Toxocara canis. Hematoxylin-eosin stained sections of infected mouse brain. Toxocara canis. Hematoxylin-eosin stained sections of infected mouse brain.
 376 Toxocara canis. Hematoxylin-eosin stained sections of infected mouse brain. Toxocara canis. Hematoxylin-eosin stained sections of infected mouse brain.
 377 M organism of Frenkel Hematoxylin-eosin stained sections of mouse brain. M organism of Frenkel Hematoxylin-eosin stained sections of mouse brain.
 378 M organism of Frenkel Hematoxylin-eosin stained sections of mouse brain. M organism of Frenkel Hematoxylin-eosin stained sections of mouse brain.
 379 Besnoitia. Cysts in striated muscle of reindeer. Besnoitia. Cysts in striated muscle of reindeer.
 380 Besnoitia. Cysts in striated muscle of reindeer. Besnoitia. Cysts in striated muscle of reindeer.
 381 Toxoplasma gondii. Cysts in unstained crush preparation of mouse brain. Toxoplasma gondii. Cysts in unstained crush preparation of mouse brain.
 382 Toxoplasma gondii Hematoxylin-eosin stained cyst in mouse brain. Toxoplasma gondii Hematoxylin-eosin stained cyst in mouse brain.
 383 Strongyloides stercoralis. Gross pathology. Ulcerations in human stomach associated with infection. Strongyloides stercoralis. Gross pathology. Ulcerations in human stomach associated with infection.
 384 Strongyloides stercoralis. Gross pathology. Lymphadenopathy associated with infection. Strongyloides stercoralis. Gross pathology. Lymphadenopathy associated with infection.
 385 Strongyloides stercoralis. Hematoxylin-eosin stained sections of lymph gland showing adenitis associated with infection. Strongyloides stercoralis. Hematoxylin-eosin stained sections of lymph gland showing adenitis associated with infection.
 386 Strongyloides stercoralis Gross pathology. Fatty degeneration of human liver associated with infection. Strongyloides stercoralis Gross pathology. Fatty degeneration of human liver associated with infection.
 387 Strongyloides stercoralis  Hematoxylin-eosin stained section of above liver showing fatty degeneration of parenchymatous cells. Strongyloides stercoralis Hematoxylin-eosin stained section of above liver showing fatty degeneration of parenchymatous cells.
 388 Strongyloides stercoralis  Hematoxylin-eosin stained section of above liver showing fatty degeneration of parenchymatous cells. Strongyloides stercoralis Hematoxylin-eosin stained section of above liver showing fatty degeneration of parenchymatous cells.
 389 Strongyloides stercoralis. Gross pathology. Cross section of human gut showing atrophy of mucous layer. Strongyloides stercoralis. Gross pathology. Cross section of human gut showing atrophy of mucous layer.
 390 Strongyloides stercoralis. Hematoxylin-eosin stained section of human lung showing larva in alveolus Strongyloides stercoralis. Hematoxylin-eosin stained section of human lung showing larva in alveolus
 391 Strongyloides stercoralis. Hematoxylin-eosin stained section of human lung showing larva in alveolus Strongyloides stercoralis. Hematoxylin-eosin stained section of human lung showing larva in alveolus
 392 Ascaris lumbricoides. Multiple adults penetrating bowel. Ascaris lumbricoides. Multiple adults penetrating bowel.
 393 Ascaris lumbricoides. Gross pathology. Coiled nematode under liver capsule. Ascaris lumbricoides. Gross pathology. Coiled nematode under liver capsule.
 394 Ascaris lumbricoides. Gross pathology. Adults in bile ducts. Ascaris lumbricoides. Gross pathology. Adults in bile ducts.
 395 Ascaris lumbricoides. Gross pathology. Adults in liver parenchyme. Ascaris lumbricoides. Gross pathology. Adults in liver parenchyme.
 396 Onchocerca volvulus. Dermatitis over buttocks. Onchocerca volvulus. Dermatitis over buttocks.
 397 Loa loa Calabar swelling of leg and foot. Loa loa Calabar swelling of leg and foot.
 398 Wuchereria bancrofti. Lymphadenopathy demonstrated by x-ray. Wuchereria bancrofti. Lymphadenopathy demonstrated by x-ray.
 399 Wuchereria bancrofti. Calcification in testes demonstrated by x-ray. Wuchereria bancrofti. Calcification in testes demonstrated by x-ray.
 400 Wuchereria bancrofti. Scrotal enlargement. Wuchereria bancrofti. Scrotal enlargement.
 401 Wuchereria bancrofti. Elephantiasis of lower extremity. Wuchereria bancrofti. Elephantiasis of lower extremity.
 402 Dracunculus medinensis. Adult in situ. Dracunculus medinensis. Adult in situ.
 403 Cutaneous larva migrans Plantar surface of foot Cutaneous larva migrans Plantar surface of foot
 404 Leishmania. Lesion of forehead. South America. Leishmania. Lesion of forehead. South America.
 405 Leishmania. Lesions of thighs. Brazil. Leishmania. Lesions of thighs. Brazil.
 406 Leishmania. Healing skin lesion. Leishmania. Healing skin lesion.
 407 Leishmania. Healing skin lesion. Leishmania. Healing skin lesion.
 408 Trypanosoma cruzi. Gross pathology. Unopened heart showing myocarditis in Chagas' disease. Trypanosoma cruzi. Gross pathology. Unopened heart showing myocarditis in Chagas' disease.
 409 Trypanosoma cruzi. Gross pathology. Opened heart showing myocardltls in Chagas' disease. Trypanosoma cruzi. Gross pathology. Opened heart showing myocardltls in Chagas' disease.
 410 Trypanosoma cruzi. Gross pathology. Opened heart showing myocardltls in Chagas' disease. Trypanosoma cruzi. Gross pathology. Opened heart showing myocardltls in Chagas' disease.
 411 Trypanosoma cruzi. Gross pathology. Opened heart showing myocardltls in Chagas' disease. Trypanosoma cruzi. Gross pathology. Opened heart showing myocardltls in Chagas' disease.
 412 Trypanosoma cruzi. Gross pathology. Opened heart showing myocardltls in Chagas' disease. Trypanosoma cruzi. Gross pathology. Opened heart showing myocardltls in Chagas' disease.
 413 Trypanosoma cruzi. Hematoxylin-eosin stained section of myocardium showing inflammation, fibrosis and masses of leishmania forms. Trypanosoma cruzi. Hematoxylin-eosin stained section of myocardium showing inflammation, fibrosis and masses of leishmania forms.
 414 Verruga peruana. Gigantic verrucous eruption on legs. Verruga peruana. Gigantic verrucous eruption on legs.
 415 Verruga peruana. Verrucous eruption on legs, nodular type. Verruga peruana. Verrucous eruption on legs, nodular type.
 416 Verruga peruana. Hematogenous nodular type verrucous eruption on leg. Verruga peruana. Hematogenous nodular type verrucous eruption on leg.
 417 Verruga peruana. Miliary type verrucous eruption. Verruga peruana. Miliary type verrucous eruption.
 418 Verruga peruana. Hematoxylin-eosin stained section of gigantic facial verruca showing angiomatous character. Verruga peruana. Hematoxylin-eosin stained section of gigantic facial verruca showing angiomatous character.
 419 Leishmania. (South America). A three month old lesion involving palate. Leishmania. (South America). A three month old lesion involving palate.
 420 Leishmania. (Brazil) Erosion of oral structures. Leishmania. (Brazil) Erosion of oral structures.
 421 Leishmania. (South America) One year old infection involving naso-labial structures. Leishmania. (South America) One year old infection involving naso-labial structures.
 422 Leishmania. (South America) Three year old infection with involvement of naso-labial structures. Leishmania. (South America) Three year old infection with involvement of naso-labial structures.
 423 Leishmania. (South America) Three year old infection with involvement of naso-labial structures. Leishmania. (South America) Three year old infection with involvement of naso-labial structures.
 424 Leishmania (Costa Rica) Destruction of nasal septum. Leishmania (Costa Rica) Destruction of nasal septum.
 425  Leishmania. (South America) Twenty year old lesion. Leishmania. (South America) Twenty year old lesion.
 426 Leishmania. (South America) Chronic skin infection. Leishmania. (South America) Chronic skin infection.
 427 Leishmania (South America) Hematoxylin-eosin stained tissue section showing tuberculoid (granulomatous) reaction with central necrosis but no parasites. Leishmania (South America) Hematoxylin-eosin stained tissue section showing tuberculoid (granulomatous) reaction with central necrosis but no parasites.
 428 Leishmania. (South America) Hematoxylin-eosin stained section through a pseudo-lepromatous lesion. Leishmania. (South America) Hematoxylin-eosin stained section through a pseudo-lepromatous lesion.
 429 Leishmania. Hematoxylin-eosin stained section of pseudolepromatous lesion showing Leishmania. South America. Leishmania. Hematoxylin-eosin stained section of pseudolepromatous lesion showing Leishmania. South America.
 430 Leishmania. Smear from pseudolepromatous nodule showing Leishmania. South America. Leishmania. Smear from pseudolepromatous nodule showing Leishmania. South America.
 431 Leishmania Hematoxylin-eosin stained section showing tuberculoid reaction with Langhans type giant cells. South America. Leishmania Hematoxylin-eosin stained section showing tuberculoid reaction with Langhans type giant cells. South America.
 432 Leishmania. Hematoxylin-eosin stained section showing ulceration. South America. Leishmania. Hematoxylin-eosin stained section showing ulceration. South America.
 433 Leishmania Hematoxylin-eosin stained section through papillomatous lesion with diffuse infiltration of dermis. Leishmania Hematoxylin-eosin stained section through papillomatous lesion with diffuse infiltration of dermis.
 434 Taenia solium. Cysticercus in brain. Taenia solium. Cysticercus in brain.
 435 Taenia solium. Cysticercus in left ventricular myocardium. Taenia solium. Cysticercus in left ventricular myocardium.
 436 Leishmania donovani. Hepatosplenomegaly. Leishmania donovani. Hepatosplenomegaly.
 437 Leishmania donovani. Splenomegaly in a 2 yr. old and a 4 yr. old child. Leishmania donovani. Splenomegaly in a 2 yr. old and a 4 yr. old child.
 438 Toxoplasma gondii. Encephalomyelitis. Toxoplasma gondii. Encephalomyelitis.
 439 Toxoplasma gondii. Hematoxylin-eosin stained, (phase microscopy) section of infected myocardium. Toxoplasma gondii. Hematoxylin-eosin stained, (phase microscopy) section of infected myocardium.
 440 Entamoeba histolytica. Gross pathology; ulcerative amoebic colitis. Entamoeba histolytica. Gross pathology; ulcerative amoebic colitis.
 441 Entamoeba histolytica. Best carmine stained section of rectum. Entamoeba histolytica. Best carmine stained section of rectum.
 442 Entamoeba histolytica. Hematoxylin-eosin stained section of rectum showing numerous parasites. Entamoeba histolytica. Hematoxylin-eosin stained section of rectum showing numerous parasites.
 443 Entamoeba histolytica Best carmine stained section of rectum. Entamoeba histolytica Best carmine stained section of rectum.
 444 Entamoeba histolytica Best carmine stained section of rectum. Entamoeba histolytica Best carmine stained section of rectum.
 445 Entamoeba histolytica Best carmine stained section of rectum. Note ganglion cells. Entamoeba histolytica Best carmine stained section of rectum. Note ganglion cells.
 446 Entamoeba hi stolytica. Best carmine stained section of rectum. Note cytolysis around amoebas. Entamoeba hi stolytica. Best carmine stained section of rectum. Note cytolysis around amoebas.
 447 Entamoeba histolytica. Best carmine stained section of rectum. Note trophozoite with ingested red blood cell. Entamoeba histolytica. Best carmine stained section of rectum. Note trophozoite with ingested red blood cell.
 448 Entamoeba histolytica. Best carmine stained section of rectum with suggestion of vessel invasion. Entamoeba histolytica. Best carmine stained section of rectum with suggestion of vessel invasion.
 449 Acanthamoeba Meningitis. Hematoxylin-eosin stained section of human brain at various magnifications. Acanthamoeba Meningitis. Hematoxylin-eosin stained section of human brain at various magnifications.
 450 Acanthamoeba Meningitis. Hematoxylin-eosin stained section of human brain at various magnifications. Acanthamoeba Meningitis. Hematoxylin-eosin stained section of human brain at various magnifications.
 451 Acanthamoeba Meningitis. Hematoxylin-eosin stained section of human brain at various magnifications. Acanthamoeba Meningitis. Hematoxylin-eosin stained section of human brain at various magnifications.
 452 Entamoeba histolytica. Radioactive scans of liver prior to and after aspiration of hepatic abscess. Entamoeba histolytica. Radioactive scans of liver prior to and after aspiration of hepatic abscess.
 453 Entamoeba histolytica. Radioactive scans of liver prior to and after aspiration of hepatic abscess. Entamoeba histolytica. Radioactive scans of liver prior to and after aspiration of hepatic abscess.
 454 Plasmodium falciparum. Thick smear of blood; Giemsa stain. Plasmodium falciparum. Thick smear of blood; Giemsa stain.
 455 Plasmodium falciparum. Splenomegaly. Plasmodium falciparum. Splenomegaly.
 456 Trichomonas vaginalis. Inflammatory exudate associated with infection. Trichomonas vaginalis. Inflammatory exudate associated with infection.
 457 Trichomonas vaginalis Papanicolaou stain of vaginal smear. Trichomonas vaginalis Papanicolaou stain of vaginal smear.
 458 Entamoeba histolytica. Ulcerations in colon. Entamoeba histolytica. Ulcerations in colon.
 459 Entamoeba histolytica. Hepato-pulmonary abscess communication with bronchus. Entamoeba histolytica. Hepato-pulmonary abscess communication with bronchus.
 460 Entamoeba histolytica. Hepato-pulmonary abscess communication with bronchus. Entamoeba histolytica. Hepato-pulmonary abscess communication with bronchus.
 461 Entamoeba histolytica. Kidney from above case with incidental tubular adenoma. Entamoeba histolytica. Kidney from above case with incidental tubular adenoma.
 462 Entamoeba histolytica. Hepato-pulmonary abscess communication with bronchus. Entamoeba histolytica. Hepato-pulmonary abscess communication with bronchus.
 463 Entamoeba histolytica. Amoebic abscess of cerebrum. Entamoeba histolytica. Amoebic abscess of cerebrum.
 464 Entamoeba histolytica. Chronic inflammatory response in region of bowel ulcer. Entamoeba histolytica. Chronic inflammatory response in region of bowel ulcer.
 465 Entamoeba histolytica. Chronic inflammatory response in region of bowel ulcer. Entamoeba histolytica. Chronic inflammatory response in region of bowel ulcer.
 466 Entamoeba histolytica. Trophozoite in submucosa of colon. Entamoeba histolytica. Trophozoite in submucosa of colon.
 467 Entamoeba histolytica. Trophozoite in submucosa of colon. Entamoeba histolytica. Trophozoite in submucosa of colon.
 468 Entamoeba histolytica. Wall of liver abscess. Entamoeba histolytica. Wall of liver abscess.
 469 Entamoeba histolytica. Chronic necrotizing inflammatory reaction in bronchial wall. Entamoeba histolytica. Chronic necrotizing inflammatory reaction in bronchial wall.
 470 Entamoeba histolytica. Trophozoite in bronchial wall. Entamoeba histolytica. Trophozoite in bronchial wall.
 471 Entamoeba histolytica. Wall of pulmonary abscess. Entamoeba histolytica. Wall of pulmonary abscess.
 472 Entamoeba histolytica. Wall of pulmonary abscess. Entamoeba histolytica. Wall of pulmonary abscess.
 473 Entamoeba histolytica. Brain showing glial proliferation and amoeba. Entamoeba histolytica. Brain showing glial proliferation and amoeba.
 474 Entamoeba histolytica. Brain showing glial proliferation and amoeba. Entamoeba histolytica. Brain showing glial proliferation and amoeba.
 475 Pneumocystis carinii. Sections through lungs of experimentally infected rats showing infiltration in hilar, peribronchial and suhpleural areas where such infections usually start. The infection is not evenly distributed through the lung sections. Pneumocystis carinii. Sections through lungs of experimentally infected rats showing infiltration in hilar, peribronchial and suhpleural areas where such infections usually start. The infection is not evenly distributed through the lung sections.
 476 Pneumocystis carinii. Lungs from infant dead from Pneumocystis pneumonia showing the characteristic brick red color and grooves due to rib pressure on expanded lungs. The parenchyma (477) is dryer and paler than is usually true of bronchopneumonias. Pneumocystis carinii. Lungs from infant dead from Pneumocystis pneumonia showing the characteristic brick red color and grooves due to rib pressure on expanded lungs. The parenchyma (477) is dryer and paler than is usually true of bronchopneumonias.
 477 Pneumocystis carinii. Lungs from infant dead from Pneumocystis pneumonia showing the characteristic brick red color and grooves due to rib pressure on expanded lungs. The parenchyma (477) is dryer and paler than is usually true of bronchopneumonias. Pneumocystis carinii. Lungs from infant dead from Pneumocystis pneumonia showing the characteristic brick red color and grooves due to rib pressure on expanded lungs. The parenchyma (477) is dryer and paler than is usually true of bronchopneumonias.
 478 Pneumocystis carinii. X-ray of child with pneumonia showing the characteristic ground glass appearance of such lungs. Pneumocystis carinii. X-ray of child with pneumonia showing the characteristic ground glass appearance of such lungs.
 479 Pneumocystis carinii. Premature infant who died of pneumonia four months after birth. Note the total marasmus, the rachitic rosary, protruding abdomen and severe muscle wasting. Pneumocystis carinii. Premature infant who died of pneumonia four months after birth. Note the total marasmus, the rachitic rosary, protruding abdomen and severe muscle wasting.
 480 Pneumocystis carinii. Pneumonia. Low power view of lung (infant) showing that not all alveoli contain 'honeycomb material.' Pneumocystis carinii. Pneumonia. Low power view of lung (infant) showing that not all alveoli contain 'honeycomb material.'
 481 Pneumocystis carinii. Pneumonia. Slightly larger magnification shows thickened alveolar walls invaded by large numbers of plasma cells and lymphocytes  The alveolar spaces are filled with honeycomb material. There is no neutrophilic leukocytic infiltration nor is a fibrinous deposit present. Pneumocystis carinii. Pneumonia. Slightly larger magnification shows thickened alveolar walls invaded by large numbers of plasma cells and lymphocytes The alveolar spaces are filled with honeycomb material. There is no neutrophilic leukocytic infiltration nor is a fibrinous deposit present.
 482 Pneumocystis carinii. Pneumonia. The alveolar spaces contain honeycomb material. A lining of pinkish red material defines the alveolar space. Note the thickened alveolar walls which are intensively invaded by plasma cells and lymphocytes. Pneumocystis carinii. Pneumonia. The alveolar spaces contain honeycomb material. A lining of pinkish red material defines the alveolar space. Note the thickened alveolar walls which are intensively invaded by plasma cells and lymphocytes.
 483 Pneumocystis carinii Pneumonia. Occasionally the hilar lymph nodes are invaded. This specimen shows honeycomb material filling the sinusoids of such a node. Pneumocystis carinii Pneumonia. Occasionally the hilar lymph nodes are invaded. This specimen shows honeycomb material filling the sinusoids of such a node.
 484 Pneumocystis carinii. Pneumonia. High power views showing proliferation of cells lining the alveoli and honeycomb material. Pneumocystis carinii. Pneumonia. High power views showing proliferation of cells lining the alveoli and honeycomb material.
 485 Pneumocystis carinii. Pneumonia. Low power view of infected lung stained with silver methenamine. Some parasites stain better than others. Pneumocystis carinii. Pneumonia. Low power view of infected lung stained with silver methenamine. Some parasites stain better than others.
 486 Pneumocystis carinii. Pneumonia. High power view of infected lung stained with silver methenamine. Parasitic borders are often sharply outlint in black. Fewer nuclei are seen. Pneumocystis carinii. Pneumonia. High power view of infected lung stained with silver methenamine. Parasitic borders are often sharply outlint in black. Fewer nuclei are seen.
 487 Pneumocystis carinii. Pneumonia. Higher power views of infected lung stained with silver methenamine. Darkly stained parasites within the 'honeycomb' material occasionally contain stained nuclear material. Pneumocystis carinii. Pneumonia. Higher power views of infected lung stained with silver methenamine. Darkly stained parasites within the 'honeycomb' material occasionally contain stained nuclear material.
 488 Pneumocystis carinii. Pneumonia. High powered view of infected lung designed to illustrate dark staining nucleus and parasite wall by silver methenamine technique. Pneumocystis carinii. Pneumonia. High powered view of infected lung designed to illustrate dark staining nucleus and parasite wall by silver methenamine technique.
 489 Pneumocystis carinii. Pneumonia. High powered view of infected lung designed to illustrate dark staining nucleus and parasite wall by silver methenamine technique. Pneumocystis carinii. Pneumonia. High powered view of infected lung designed to illustrate dark staining nucleus and parasite wall by silver methenamine technique.
 490 Pneumocystis carinii. Pneumonia. High powered view of infected lung designed to illustrate dark staining nucleus and parasite wall by silver methenamine technique. Pneumocystis carinii. Pneumonia. High powered view of infected lung designed to illustrate dark staining nucleus and parasite wall by silver methenamine technique.
 491 Pneumocystis carinii. Pneumonia. High powered view of infected lung designed to illustrate dark staining nucleus and parasite wall by silver methenamine technique. Pneumocystis carinii. Pneumonia. High powered view of infected lung designed to illustrate dark staining nucleus and parasite wall by silver methenamine technique.
 492 Pneumocystis carinii. Pneumonia. Low power view of infected lung stained by Wheatly modification of trichrome stain for stools demonstrating alveoli and a small bronchiole invaded by parasites. 'Honeycomb' material is present. Pneumocystis carinii. Pneumonia. Low power view of infected lung stained by Wheatly modification of trichrome stain for stools demonstrating alveoli and a small bronchiole invaded by parasites. 'Honeycomb' material is present.
 493 Pneumocystis carinii. Pneumonia. Higher magnification of infected lung stained by Wheatly modification of trichrome stain for stools showing 'honeycomb' material in alveoli. Parasites are also seen and occasionally nuclear material is visible within the parasites. Pneumocystis carinii. Pneumonia. Higher magnification of infected lung stained by Wheatly modification of trichrome stain for stools showing 'honeycomb' material in alveoli. Parasites are also seen and occasionally nuclear material is visible within the parasites.
 494 Pneumocystis carinii. Pneumonia. Higher magnification of infected lung stained by Wheatly modification of trichrome stain for stools showing 'honeycomb' material in alveoli. Parasites are also seen and occasionally nuclear material is visible within the parasites. Pneumocystis carinii. Pneumonia. Higher magnification of infected lung stained by Wheatly modification of trichrome stain for stools showing 'honeycomb' material in alveoli. Parasites are also seen and occasionally nuclear material is visible within the parasites.
 495 Pneumocystis carinii Pneumonia. Oil immersion views of alveoli stained by the Wheatly modification of trichrome for stools showing numerous parasites within 'honeycomb' material. Parasitic nuclear material and limiting membranes stain well. There is active proliferation of alveolar macrophages and evidence of phagocytosis. Pneumocystis carinii Pneumonia. Oil immersion views of alveoli stained by the Wheatly modification of trichrome for stools showing numerous parasites within 'honeycomb' material. Parasitic nuclear material and limiting membranes stain well. There is active proliferation of alveolar macrophages and evidence of phagocytosis.
 496 Pneumocystis carinii Pneumonia. Oil immersion views of alveoli stained by the Wheatly modification of trichrome for stools showing numerous parasites within 'honeycomb' material. Parasitic nuclear material and limiting membranes stain well. There is active proliferation of alveolar macrophages and evidence of phagocytosis. Pneumocystis carinii Pneumonia. Oil immersion views of alveoli stained by the Wheatly modification of trichrome for stools showing numerous parasites within 'honeycomb' material. Parasitic nuclear material and limiting membranes stain well. There is active proliferation of alveolar macrophages and evidence of phagocytosis.
 497 Pneumocystis carinii. Pneumonia. Oil immersion view of alveolus stained by the Wh.eatl y modification of trichrome for stool showing macrophage invasion and parasites. Pneumocystis carinii. Pneumonia. Oil immersion view of alveolus stained by the Wh.eatl y modification of trichrome for stool showing macrophage invasion and parasites.
 498 Pneumocystis carinii. Pneumonia. Oil immersion view of alveolus stained by the Wh.eatl y modification of trichrome for stool showing macrophage invasion and parasites. Pneumocystis carinii. Pneumonia. Oil immersion view of alveolus stained by the Wh.eatl y modification of trichrome for stool showing macrophage invasion and parasites.
 499 Pneumocystis carinii. Pneumonia. Oil immersion view of alveolar material colored by Romanowsky type stain showing cyst like structure containing up to eight parasites. Pneumocystis carinii. Pneumonia. Oil immersion view of alveolar material colored by Romanowsky type stain showing cyst like structure containing up to eight parasites.
 500 Pneumocystis carinii. Pneumonia. Oil immersion view of alveolar material colored by Romanowsky type stain showing cyst like structure containing up to eight parasites. Pneumocystis carinii. Pneumonia. Oil immersion view of alveolar material colored by Romanowsky type stain showing cyst like structure containing up to eight parasites.
 501 Pneumocystis carinii. Pneumonia. Touch preparation of similar material. Pneumocystis carinii. Pneumonia. Touch preparation of similar material.
 502 Diphyllobothrium latum. Scolex and immature proglottids. Scolex bears grooves, not suckers. Diphyllobothrium latum. Scolex and immature proglottids. Scolex bears grooves, not suckers.
 503 Balantidium caviae. Trophozoite showing cilia and contractile vacuole. Balantidium caviae. Trophozoite showing cilia and contractile vacuole.
 504 Ascaris lumbricoides. Egg in stool showing shell layers nicely. Ascaris lumbricoides. Egg in stool showing shell layers nicely.
 505 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 506 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 507 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 508 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 509 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 510 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 511 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 512 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 513 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 514 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 515 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 516 Hookworm. Sequence showing development of larva in eggs. Hookworm. Sequence showing development of larva in eggs.
 517 Trichostrongylus Egg from human stool. Characteristically this egg is longer than hookworm eggs. Trichostrongylus Egg from human stool. Characteristically this egg is longer than hookworm eggs.
 518 Trichostrongylus Egg from human stool. Characteristically this egg is longer than hookworm eggs. Trichostrongylus Egg from human stool. Characteristically this egg is longer than hookworm eggs.
 519 Trichostrongylus egg, hookworm egg, and Strongyloides stercoralis larva. All from one patient. Trichostrongylus egg, hookworm egg, and Strongyloides stercoralis larva. All from one patient.
 520 Strongyloides stercoralis. Filariform larva with forked tail. Strongyloides stercoralis. Filariform larva with forked tail.
 521 Strongyloides stercoralis. Filariform larva with forked tail. Strongyloides stercoralis. Filariform larva with forked tail.
 522 Macracanthorhynchus hirudinaceus Egg in stool of Viet Namese officer. Macracanthorhynchus hirudinaceus Egg in stool of Viet Namese officer.
 523 Taenia. Egg showing hooks. Taenia. Egg showing hooks.
 524 Toxocara canis Toxocara canis
 525 Dracunculus. Larva. Dracunculus. Larva.
 526 Chilomastix mesnili. Uninucleate lemon shaped cyst, iodine stained. Chilomastix mesnili. Uninucleate lemon shaped cyst, iodine stained.
 527 Chilomastix mesnili. Uninucleate lemon shaped cyst, iodine stained. Chilomastix mesnili. Uninucleate lemon shaped cyst, iodine stained.
 528 Phthirus pubis. Whole mounts. Note egg in female. Phthirus pubis. Whole mounts. Note egg in female.
 529 Phthirus pubis. Whole mounts. Note egg in female. Phthirus pubis. Whole mounts. Note egg in female.
 530 Entamoeba histolytica. Trophozoite with ingested red blood cells. Entamoeba histolytica. Trophozoite with ingested red blood cells.
 531 Entamoeba coil Trophozoites. Entamoeba coil Trophozoites.
 532 Endolimax nana. Trophozoites. Endolimax nana. Trophozoites.
 533 Entamoeba histolytica.  Liver destruction. Entamoeba histolytica. Liver destruction.
 534 Cheyletiella parasitivorax. Mite of cats and rabbits which may cause skin lesions in humans, especially children. Cheyletiella parasitivorax. Mite of cats and rabbits which may cause skin lesions in humans, especially children.
 535 Ascaris lumbricoides. Cross section of adult in bile duct. Ascaris lumbricoides. Cross section of adult in bile duct.
 536 Fasciola hepatica Traumatic hepatitis caused by migration of immature larvae. Junction of necrotic liver tissue and zone of cell reactions shown. Fasciola hepatica Traumatic hepatitis caused by migration of immature larvae. Junction of necrotic liver tissue and zone of cell reactions shown.
 537 Clonorchis sinensis Adult in bile duct which shows marked hyperplasia of epithelium. Clonorchis sinensis Adult in bile duct which shows marked hyperplasia of epithelium.
 538 Toxocara canis Lesion in dog kidney caused by larva. Toxocara canis Lesion in dog kidney caused by larva.
 539 Ascaris lumbricoides. Second stage larva in liver of an immune guinea pig. Ascaris lumbricoides. Second stage larva in liver of an immune guinea pig.
 540 Naegleria. Brain with trophozoites. H & E stain. Naegleria. Brain with trophozoites. H & E stain.
 541 Naegleria. Brain with trophozoites. H & E stain. Naegleria. Brain with trophozoites. H & E stain.
 542 Schistosoma mansoni. Hepatic portal veins of mouse 28 days after infection. Schistosoma mansoni. Hepatic portal veins of mouse 28 days after infection.
 543 Plasmodium falciparum. Parasites in cardiac capillary. Plasmodium falciparum. Parasites in cardiac capillary.
 544 Taenia solium. Cysticercus in human brain. Taenia solium. Cysticercus in human brain.
 545 Strongyloides stercoralis. Autoinfection larva penetrating deep into intestinal wall. Strongyloides stercoralis. Autoinfection larva penetrating deep into intestinal wall.
 546 Enterobius vermicularis Cross section through adults in . appendix. Enterobius vermicularis Cross section through adults in . appendix.
 547 Enterobius vermicularis. High power view of flattened eggs in uterus of female found in appendix. Enterobius vermicularis. High power view of flattened eggs in uterus of female found in appendix.
 548 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 549 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 550 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 551 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 552 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 553 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 554 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 555 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 556 Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series. Plasmodium falciparum. The development of male sexual cells from gametocyte to sperm cells (exflagellation) is shown in this series.
 557 Plasmodium vivax. Schizogony from binucleate through multinucleate stages. Plasmodium vivax. Schizogony from binucleate through multinucleate stages.
 558 Plasmodium vivax. Schizogony from binucleate through multinucleate stages. Plasmodium vivax. Schizogony from binucleate through multinucleate stages.
 559 Plasmodium vivax. Schizogony from binucleate through multinucleate stages. Plasmodium vivax. Schizogony from binucleate through multinucleate stages.
 560 Plasmodium vivax. Schizogony from binucleate through multinucleate stages. Plasmodium vivax. Schizogony from binucleate through multinucleate stages.
 561 Plasmodium vivax. Schizogony from binucleate through multinucleate stages. Plasmodium vivax. Schizogony from binucleate through multinucleate stages.
 562 Plasmodium vivax. Schizogony from binucleate through multinucleate stages. Plasmodium vivax. Schizogony from binucleate through multinucleate stages.
 563 Plasmodium vivax. Schizont 'explodes.' Plasmodium vivax. Schizont 'explodes.'
 564 Plasmodium falciparum. Severe infection with red blood cell harboring several parasites. Plasmodium falciparum. Severe infection with red blood cell harboring several parasites.
 565 Plasmodium falciparum. Thick smear showing rings only. Plasmodium falciparum. Thick smear showing rings only.
 566 Plasmodium vivax. Thick smear. Plasmodium vivax. Thick smear.
 567 Plasmodium vivax. Thick smear. Plasmodium vivax. Thick smear.
 568 Plasmodium falciparum. Thick smears showing gametocytes. Plasmodium falciparum. Thick smears showing gametocytes.
 569 Plasmodium falciparum. Thick smears showing gametocytes. Plasmodium falciparum. Thick smears showing gametocytes.
 570 Leishmania donovani. Smear with unusually clear staining of blepharoplast and nucleus. Leishmania donovani. Smear with unusually clear staining of blepharoplast and nucleus.
 571 Plasmodium falciparum. Parasites in brain capillary. Plasmodium falciparum. Parasites in brain capillary.
 572 Schistosoma mansoni. Hepatosplenomegaly. Schistosoma mansoni. Hepatosplenomegaly.
 573 Schistosoma mansoni. Hepatosplenomegaly. Schistosoma mansoni. Hepatosplenomegaly.
 574 Schistosoma mansoni. Note engorgement of collateral circulation of abdomen. Schistosoma mansoni. Note engorgement of collateral circulation of abdomen.
 575 Leishmania braziliensis. Ulcer is site of 3 week old Phlebotomus bite. Leishmania braziliensis. Ulcer is site of 3 week old Phlebotomus bite.
 576 Leishmania. Skin lesion of foot. Colombia, S.A. Leishmania. Skin lesion of foot. Colombia, S.A.
 577 Leishmania. Mucocutaneo u s destruction. Colombia, S. A Leishmania. Mucocutaneo u s destruction. Colombia, S. A
 578 Echinococcus granulosus. Cyst in brain. Photograph of seven year old Italian-born female who fell down five steps and shortly thereafter became unconscious for a few seconds. Vomited for a week. One month later she developed convulsions, headaches, and intermittent drowsiness. A few hours prior to hospitalization, she vomited (nonprojectile), convulsed, complained of pain in the neck and became drowsy. Physical examination showed neck stiffness, hyperactive knee jerks, positive Kernig sign and Babinski reflexes. The patient went into a deep coma with occasional involuntary motions and died two days after admission. At autopsy, a 250 gram , 10 x 5 cm., white-walled cyst bulged through the gray matter of the left cerebrum. Subsequent microscopic examination of the cyst wall revealed typical scolices of Echinococcus granulosus. Echinococcus granulosus. Cyst in brain. Photograph of seven year old Italian-born female who fell down five steps and shortly thereafter became unconscious for a few seconds. Vomited for a week. One month later she developed convulsions, headaches, and intermittent drowsiness. A few hours prior to hospitalization, she vomited (nonprojectile), convulsed, complained of pain in the neck and became drowsy. Physical examination showed neck stiffness, hyperactive knee jerks, positive Kernig sign and Babinski reflexes. The patient went into a deep coma with occasional involuntary motions and died two days after admission. At autopsy, a 250 gram , 10 x 5 cm., white-walled cyst bulged through the gray matter of the left cerebrum. Subsequent microscopic examination of the cyst wall revealed typical scolices of Echinococcus granulosus.
 579 Echinococcus granulosus. Inner surface of the cyst in number 578. Echinococcus granulosus. Inner surface of the cyst in number 578.
 580 Echinococcus granulosus. Protoscolices, proliferative membrane and the laminated eosinophilic membranes are seen. Echinococcus granulosus. Protoscolices, proliferative membrane and the laminated eosinophilic membranes are seen.
 581 Echinococcus granulosus. Protoscolices are seen at higher magnifications. Echinococcus granulosus. Protoscolices are seen at higher magnifications.
 582 Echinococcus granulosus. Protoscolices are seen at higher magnifications. Echinococcus granulosus. Protoscolices are seen at higher magnifications.
 583 Toxoplasma gondii Whole brain showing severe inflammatory reaction of meninges. Thinning of the cortex can be observed in region where the brain was incised. Toxoplasma gondii Whole brain showing severe inflammatory reaction of meninges. Thinning of the cortex can be observed in region where the brain was incised.
 584 Toxoplasma gondii. Formalin fixed, hydrocephalic infant brain showing hemorrhage, congestion and pressure. Toxoplasma gondii. Formalin fixed, hydrocephalic infant brain showing hemorrhage, congestion and pressure.
 585 Toxoplasma gondii Coronal sections of same brain showing dilatation of ventricles and thinning of cortex as well as hemorrhage. Toxoplasma gondii Coronal sections of same brain showing dilatation of ventricles and thinning of cortex as well as hemorrhage.
 586 Toxoplasma gondii Trophic stages in a cell from mouse peritoneal fluid. Toxoplasma gondii Trophic stages in a cell from mouse peritoneal fluid.
 587 Toxoplasma gondii. Trophic stages from rupturing cell in mouse peritoneal exudate.hydatids. Toxoplasma gondii. Trophic stages from rupturing cell in mouse peritoneal exudate.hydatids.
 588 Naegleria Lee case of primary amoebic meningoencephalitis. Whole brain. Naegleria Lee case of primary amoebic meningoencephalitis. Whole brain.
 589 Naegleria Lee case of primary amoebic meningoencephalitis. Whole brain. Naegleria Lee case of primary amoebic meningoencephalitis. Whole brain.
 590 Naegleria Lee case of primary amoebic meningoencephalitis. Whole brain. Naegleria Lee case of primary amoebic meningoencephalitis. Whole brain.
 591 Naegleria Lee case of primary amoebic meningoencephalitis. Spinal fluid. Naegleria Lee case of primary amoebic meningoencephalitis. Spinal fluid.
 592 Naegleria. Lee case of primary amoebic meningoencephalitis. Olfactory bulb smear 16 August. Hematoxylin stain. Naegleria. Lee case of primary amoebic meningoencephalitis. Olfactory bulb smear 16 August. Hematoxylin stain.
 593 Naegleria. Lee case of primary amoebic meningoencephalitis. Olfactory bulb smear 3 August. Hematoxylin stain. Naegleria. Lee case of primary amoebic meningoencephalitis. Olfactory bulb smear 3 August. Hematoxylin stain.
 594 Naegleria. Lee case of primary amoebic meningoencephalitis. Olfactory bulb smear 16 August, multinucleate form. Naegleria. Lee case of primary amoebic meningoencephalitis. Olfactory bulb smear 16 August, multinucleate form.
 595 Naegleria. Lee case of primary amoebic meningoencephalitis. Ventricular fluid. Hematoxy1in stain, oil immersion. Naegleria. Lee case of primary amoebic meningoencephalitis. Ventricular fluid. Hematoxy1in stain, oil immersion.
 596 Naegleria. Brain section x 20. Naegleria. Brain section x 20.
 597 Naegleria. Brain section x 40. Naegleria. Brain section x 40.
 598 Naegleria Lee-culture showing rbc, few cysts and amoeboid cells. Naegleria Lee-culture showing rbc, few cysts and amoeboid cells.
 599 Naegleria. Lee-culture #9 - showing many trophs and cysts often in clumps. Naegleria. Lee-culture #9 - showing many trophs and cysts often in clumps.
 600 Naegleria. Lee case. Pre flagellate. Naegleria. Lee case. Pre flagellate.
 601 Naegleria. Culture #290, flagellate, low power. Naegleria. Culture #290, flagellate, low power.
 602 Naegleria. Culture #290, flagellate, higher power. Naegleria. Culture #290, flagellate, higher power.
 603 Naegleria. Flagellate (x oil) showing bulges on flagella. Naegleria. Flagellate (x oil) showing bulges on flagella.
 604 Naegleria. Lee-culture. Hematoxylin stain. Low power. Naegleria. Lee-culture. Hematoxylin stain. Low power.
 605 Naegleria. Lee-culture. Hematoxylin stain. Higher power. Naegleria. Lee-culture. Hematoxylin stain. Higher power.
 606 Naegleria. Culture. Hematoxylin stain. Oil immersion Naegleria. Culture. Hematoxylin stain. Oil immersion
 607 Naegleria. Three trophs. Oil immersion. Naegleria. Three trophs. Oil immersion.
 608 Naegleria. One flagellum, two nuclei. Hematoxylin stain. Oil immersion. Naegleria. One flagellum, two nuclei. Hematoxylin stain. Oil immersion.
 609 Naegleria. Multinucleate culture form. Hematoxylin stain. Naegleria. Multinucleate culture form. Hematoxylin stain.
 610 Naegleria. Mitotic division. Hematoxylin stain. 100x. Naegleria. Mitotic division. Hematoxylin stain. 100x.
 611 Hartmanella. Amoeboid forms in culture. Hartmanella. Amoeboid forms in culture.
 612 Hartmanella. Culture form showing filopodia. Hartmanella. Culture form showing filopodia.
 613 Acanthamoeba Cyst formation on agar culture medium. Acanthamoeba Cyst formation on agar culture medium.
 614 Acanthamoeba Five pointed cysts. Acanthamoeba Five pointed cysts.
 615 Acanthamoeba Trophozoites. Acanthamoeba Trophozoites.
 616 Acanthamoeba Trophozoites. Acanthamoeba Trophozoites.
 617 Balantidium coli Trophozoite, iodine stain showing cilia. Balantidium coli Trophozoite, iodine stain showing cilia.
 618 Balantidium coli. Trophozoite with well-stained macro-nuclei. Balantidium coli. Trophozoite with well-stained macro-nuclei.
 619 Dirofilaria immitis. Adults in dog heart. Dirofilaria immitis. Adults in dog heart.
 620 Dirofilaria immitis. Microfilaria in dog lung. Dirofilaria immitis. Microfilaria in dog lung.
 621 Dirofilaria immitis. Microfilaria in dog lung. Dirofilaria immitis. Microfilaria in dog lung.
 622 Dirofilaria immitis. Microfilaria in dog kidney.. Dirofilaria immitis. Microfilaria in dog kidney..
 623 Onchocerca volvulus. Nodule in scalp of two children. Onchocerca volvulus. Nodule in scalp of two children.
 624 Onchocerca volvulus. Dermatitis. Onchocerca volvulus. Dermatitis.
 625 Onchocerca volvulus. Excision of scalp nodule. Onchocerca volvulus. Excision of scalp nodule.
 626 Onchocerca volvulus. Blind patient. Onchocerca volvulus. Blind patient.
 627 Wuchereria bancrofti. Hanging groin. Wuchereria bancrofti. Hanging groin.
 628 Wuchereria bancrofti Early inguinal involvement Wuchereria bancrofti Early inguinal involvement
 629 Wuchereria bancrofti Early inguinal involvement Wuchereria bancrofti Early inguinal involvement
 630 Wuchereria banerofti. Marked inguinal involvement. Wuchereria banerofti. Marked inguinal involvement.
 631 Wuchereria bancrofti. l)epigmentation of skin secondary to infection and stasis Wuchereria bancrofti. l)epigmentation of skin secondary to infection and stasis
 632 Angiostrongylus cantonensis Nematode in human brain. Reference: Angiostrongylus cantonensis Nematode in human brain. Reference:
 633 Angiostrongylus cantonensis Nematode in human brain. Reference: Angiostrongylus cantonensis Nematode in human brain. Reference:
 634 Angiostrongylus cantonensis. Cross section of nematode in monkey cord showing giant cell formation around worm. Angiostrongylus cantonensis. Cross section of nematode in monkey cord showing giant cell formation around worm.
 635 Angiostrongylus cantonensis. Cross section of nematode in monkey cord showing giant cell formation around worm. Angiostrongylus cantonensis. Cross section of nematode in monkey cord showing giant cell formation around worm.
 636 Trichuris trichiura and Clonorchis sinensis Eggs. Trichuris trichiura and Clonorchis sinensis Eggs.
 637 Capillaria philippinensis. Cross section through adults. Capillaria philippinensis. Cross section through adults.
 638 Capillaria philippinensis. Egg. Capillaria philippinensis. Egg.
 639 Trichuris trichiura. Adults in bowel. Trichuris trichiura. Adults in bowel.
 640 Hookworm Child and statue with abdominal distention and typical stance. Costa Rica. Hookworm Child and statue with abdominal distention and typical stance. Costa Rica.
 641 Hookworm Child and statue with abdominal distention and typical stance. Costa Rica. Hookworm Child and statue with abdominal distention and typical stance. Costa Rica.
 642 Malnutrition and intestinal parasitism. Malnutrition and intestinal parasitism.
 643 Schistosoma haematobium Hematuria. Schistosoma haematobium Hematuria.
 644 Dermatobia hominis Incised occipital scalp of 11 year old boy from which a larva was removed. Dermatobia hominis Incised occipital scalp of 11 year old boy from which a larva was removed.
 645 Simulium Masses of eggs attached to natural and man made structures. Simulium Masses of eggs attached to natural and man made structures.
 646 Simulium Masses of eggs attached to natural and man made structures. Simulium Masses of eggs attached to natural and man made structures.
 647 Simulium Masses of eggs attached to natural and man made structures. Simulium Masses of eggs attached to natural and man made structures.
 648 Simulium Masses of eggs attached to natural and man made structures. Simulium Masses of eggs attached to natural and man made structures.
 649 Simulium. Collecting viable egg in dredge samples from stream bottom, during the fall months. Simulium. Collecting viable egg in dredge samples from stream bottom, during the fall months.
 650 Simulium. Larvae in large masses. Simulium. Larvae in large masses.
 651 Simulium. Larvae in large masses. Simulium. Larvae in large masses.
 652 Simulium. Cables producing so called 'tiger streaks' to which eggs adhere. Simulium. Cables producing so called 'tiger streaks' to which eggs adhere.
 653 Simulium. Eggs attached to the cables. Simulium. Eggs attached to the cables.
 654 Simulium. Harvesting a cable of black fly larvae. Simulium. Harvesting a cable of black fly larvae.
 655 Simulium. Eggs and developmental stages adhere to cloth netting placed on a stream bottom, thereby easing collection. Simulium. Eggs and developmental stages adhere to cloth netting placed on a stream bottom, thereby easing collection.
 656 Simulium. Eggs and developmental stages adhere to cloth netting placed on a stream bottom, thereby easing collection. Simulium. Eggs and developmental stages adhere to cloth netting placed on a stream bottom, thereby easing collection.
 657 Simulium. Pupa attached to stick. Simulium. Pupa attached to stick.
 658 Simulium. Pupa attached to twig. Simulium. Pupa attached to twig.
 659 Simulium. Pupa. Simulium. Pupa.
 660 Simulium. Collecting flies in trap placed in stream. Simulium. Collecting flies in trap placed in stream.
 661 Simulium Collecting flies in traps baited with birds. Simulium Collecting flies in traps baited with birds.
 662 Simulium Collecting flies in traps baited with birds. Simulium Collecting flies in traps baited with birds.
 663 Simulium. Larva being raised in laboratory. Simulium. Larva being raised in laboratory.
 664 Leishmania braziliensis Ear ulcer in boy holding guinea pig, a reservoir host. Leishmania braziliensis Ear ulcer in boy holding guinea pig, a reservoir host.
 665 Leishmania braziliensis. Ear ulcer in old man. Leishmania braziliensis. Ear ulcer in old man.
 666 Leishmania. Montenegro sign. Positive skin test in patient with lesions of elbow. Leishmania. Montenegro sign. Positive skin test in patient with lesions of elbow.
 667 Leishmania. Acute ulcer of nose. Leishmania. Acute ulcer of nose.
 668 Leishmania. Healed stage of nose ulcer. Leishmania. Healed stage of nose ulcer.
 669 Leishmania. Acute ulcer of wrist. Leishmania. Acute ulcer of wrist.
 670 Leishmania. Healing ulcer of waist. Leishmania. Healing ulcer of waist.
 671 Echinococcus granulosus. Originally in vertebral column. Frontal view of cachectic 53 year old Italian male approximately 10 years after discovery of cysts during a laminectomy procedure to decompress his spinal chord. Dissemination to pleura, lungs and flank followed. Patient died several months after these photos were made. Echinococcus granulosus. Originally in vertebral column. Frontal view of cachectic 53 year old Italian male approximately 10 years after discovery of cysts during a laminectomy procedure to decompress his spinal chord. Dissemination to pleura, lungs and flank followed. Patient died several months after these photos were made.
 672 Echinococcus granulosus. Same man in lateral position showing kyphosis due to compression of vertebral bodies eroded by the cysts. In addition note elevation of the left flank caused by an underlying cyst. Echinococcus granulosus. Same man in lateral position showing kyphosis due to compression of vertebral bodies eroded by the cysts. In addition note elevation of the left flank caused by an underlying cyst.
 673 Echinococcus granulosus. Posterior view showing scars of previous surgery, the large cyst in the left flank and several smaller ones near the upper end of the scars. Echinococcus granulosus. Posterior view showing scars of previous surgery, the large cyst in the left flank and several smaller ones near the upper end of the scars.
 674 Echinococcus granulosus. Close up showing multiple sinus tracts from which small cysts and fluid occasionally extruded. Echinococcus granulosus. Close up showing multiple sinus tracts from which small cysts and fluid occasionally extruded.
 675 Echinococcus granulosus. Same view with an extruded cyst in lower right quadrant. Echinococcus granulosus. Same view with an extruded cyst in lower right quadrant.
 676 Echinococcus granulosus. Same view with an extruded cyst in lower right quadrant. Echinococcus granulosus. Same view with an extruded cyst in lower right quadrant.
 677 Echinococcus granulosus. Lateral view showing the cyst in left flank to better advantage. Echinococcus granulosus. Lateral view showing the cyst in left flank to better advantage.
 678 Echinococcus granulosus. Close up view of same cyst showing old surgical scar. On previous occasions this cyst was drained and irrigated with Cytoxan or leucanthone with no improvement. Echinococcus granulosus. Close up view of same cyst showing old surgical scar. On previous occasions this cyst was drained and irrigated with Cytoxan or leucanthone with no improvement.
 679 Echinococcus granulosus. Incision of tissues overlying cyst wall. Echinococcus granulosus. Incision of tissues overlying cyst wall.
 680 Echinococcus granulosus. Incision into cyst permits escape of pseudopurulent material. Echinococcus granulosus. Incision into cyst permits escape of pseudopurulent material.
 681 Echinococcus granulosus. Cyst evacuated. One percent formalin was instilled and cyst did not reappear during the few remaining months of the patients life. Echinococcus granulosus. Cyst evacuated. One percent formalin was instilled and cyst did not reappear during the few remaining months of the patients life.
 682 Echinococcus granulosus. Solid cyst in spleen. Photo courtesy D. Graham, St. Elizabeth's Hospital, Boston, Mass. Echinococcus granulosus. Solid cyst in spleen. Photo courtesy D. Graham, St. Elizabeth's Hospital, Boston, Mass.
 683 Echinococcus granulosus. 'Sand' from renal cyst. Echinococcus granulosus. 'Sand' from renal cyst.
 684 Echinococcus granulosus. Free hooklets in renal cyst sand. Echinococcus granulosus. Free hooklets in renal cyst sand.
 685 Echinococcus granulosus. Free hooklets in renal cyst sand. Echinococcus granulosus. Free hooklets in renal cyst sand.
 686 Echinostoma, malayanum Egg. Echinostoma, malayanum Egg.
 687 Echinostoma malayanum Egg containing a fully grown miracidium. Echinostoma malayanum Egg containing a fully grown miracidium.
 688 Echinostoma malayanum. M iracidium. Echinostoma malayanum. M iracidium.
 689 Echinostoma malayanum. Epidermal plates of miracidium impregnated with silver nitrate. Echinostoma malayanum. Epidermal plates of miracidium impregnated with silver nitrate.
 690 Echinostoma malayanum. Miracidium penetrating the snail host. Indoplanorbis exustus. Early stage of penetration. Echinostoma malayanum. Miracidium penetrating the snail host. Indoplanorbis exustus. Early stage of penetration.
 691 Echinostoma malayanum. Second ~ row of epidermal plates is being shed by one of the miracidia penetrating the snail host. Echinostoma malayanum. Second ~ row of epidermal plates is being shed by one of the miracidia penetrating the snail host.
 692 Echinostoma malayanum. Miracidium penetrating the snail host and shedding the third row of epidermal plates. Echinostoma malayanum. Miracidium penetrating the snail host and shedding the third row of epidermal plates.
 693 Echinostoma malayanum. Miracidium has just penetrated the snail host leaving behind the two epidermal plates of the last row. Echinostoma malayanum. Miracidium has just penetrated the snail host leaving behind the two epidermal plates of the last row.
 694 Echinostoma malayanum. Sporocyst. Echinostoma malayanum. Sporocyst.
 695 Echinostoma malayanum. Metacercaria. Echinostoma malayanum. Metacercaria.
 696 Isospora belli. oocyst with single protoplasmic mass. Isospora belli. oocyst with single protoplasmic mass.
 697 Isospora belli. oocyst with two sporocysts. Isospora belli. oocyst with two sporocysts.
 698 Enterobius vermicularis. Anterior portion of male showing cervical alae outlined in iodine stained stool emulsion. Enterobius vermicularis. Anterior portion of male showing cervical alae outlined in iodine stained stool emulsion.
 699 Hymenolepis nana. Egg in iodine stained stool emulsion. Hymenolepis nana. Egg in iodine stained stool emulsion.
 700 Schistosoma haematobium Egg. Schistosoma haematobium Egg.
 701 Trichinella spiralis. Larvae digested free from muscle. One larva still partially surrounded by cyst wall. Trichinella spiralis. Larvae digested free from muscle. One larva still partially surrounded by cyst wall.
 702 Entamoeba histolytica.  Uninucleate trophozoites. Entamoeba histolytica. Uninucleate trophozoites.
 703 Entamoeba histolytica.  Uninucleate trophozoites. Entamoeba histolytica. Uninucleate trophozoites.
 704 Entamoeba histolytica.  Uninucleate trophozoites. Entamoeba histolytica. Uninucleate trophozoites.
 705 Entamoeba histolytica. Formaliri fixed specimen of gut, showing ulcers and liver showing abscesses. Entamoeba histolytica. Formaliri fixed specimen of gut, showing ulcers and liver showing abscesses.
 706 Endolimax nana. Trophozoite in stool. Endolimax nana. Trophozoite in stool.
 707 Giardia lamblia. Cysts. Giardia lamblia. Cysts.
 708 Giardia lamblia. Trophozoite. Giardia lamblia. Trophozoite.
 709 Clonorchissinensis Egg Clonorchissinensis Egg
 710 Plasmodium ovale. Growing trophozoites. Plasmodium ovale. Growing trophozoites.
 711 Plasmodium ovale. Growing trophozoites. Plasmodium ovale. Growing trophozoites.
 712 Plasmodium ovale. Growing trophozoites. Plasmodium ovale. Growing trophozoites.
 713 Plasmodium ovale. Growing trophozoites. Plasmodium ovale. Growing trophozoites.
 714 Plasmodium ovale. Growing trophozoites. Plasmodium ovale. Growing trophozoites.
 715 Plasmodium ovale. Schizogony. Plasmodium ovale. Schizogony.
 716 Plasmodium ovale. Two parasites simultaneously undergoing schizogony in one host cell. Plasmodium ovale. Two parasites simultaneously undergoing schizogony in one host cell.
 717 Anaplasma marginale. From cow. Anaplasma marginale. From cow.
 718 Demodex folliculorum. Skin biopsy showing arthropod and inflammatory reaction in skin. Demodex folliculorum. Skin biopsy showing arthropod and inflammatory reaction in skin.
 719 Demodex folliculorum Arthropod seen in larger magnification. Demodex folliculorum Arthropod seen in larger magnification.
 720 Demodex folliculorum. Inflammatory reaction within dermis. Demodex folliculorum. Inflammatory reaction within dermis.
 721 Dirofilaria immitis. Larvae in pulmonary vein. Dirofilaria immitis. Larvae in pulmonary vein.
 722 Culicoides. Peritrophic membrane. Culicoides. Peritrophic membrane.
 723 Echinococcus granulosus Hydatid cyst in lung of moose. Echinococcus granulosus Hydatid cyst in lung of moose.
 724 Multiceps. Cyst in rabbit. See slide #322 Multiceps. Cyst in rabbit. See slide #322
 725 Onchocerca volvulus. Excision of nodule. Onchocerca volvulus. Excision of nodule.
 726 Onchocerca volvulus. Excision of nodule. Onchocerca volvulus. Excision of nodule.
 727 Onchocerca volvulus. Sectioned nodule showing adult nematodes. Onchocerca volvulus. Sectioned nodule showing adult nematodes.
 728 Hookworm Edema associated with massive infections. Hookworm Edema associated with massive infections.
 729 Leishmania Guinea pig with lesion on nose. Leishmania Guinea pig with lesion on nose.
 730 Wuchereria bancrofti Elephantiasis of lower extremities. Wuchereria bancrofti Elephantiasis of lower extremities.
 731 Wuchereria bancrofti Elephantiasis of lower extremities. Wuchereria bancrofti Elephantiasis of lower extremities.
 732 Ascaris lumbricoides Egg in lung. Ascaris lumbricoides Egg in lung.
 733 Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy. Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy.
 734 Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy. Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy.
 735 Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy. Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy.
 736 Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy. Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy.
 737 Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy. Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy.
 738 Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy. Cutaneous larva migrans. Serpiginous tunnels on various portions of the superficial anatomy.
 739 Eimeria tenella. Intracellular sporozoite 12 hours after inoculation. Note the indentation of the host cell nucleus and the eosinophilic posterior re frac t i l e globule of the sporozoite. A parasitophoric vacuole surrounds the parasite. H & E stain. Eimeria tenella. Intracellular sporozoite 12 hours after inoculation. Note the indentation of the host cell nucleus and the eosinophilic posterior re frac t i l e globule of the sporozoite. A parasitophoric vacuole surrounds the parasite. H & E stain.
 740 Eimeria tenella. Development of sporozoite into trophozoite. Note parasite nucleus anterior to re f ract i le globule. H & E stain ( 18 hr. after inoculation). Eimeria tenella. Development of sporozoite into trophozoite. Note parasite nucleus anterior to re f ract i le globule. H & E stain ( 18 hr. after inoculation).
 741 Eimeria tenella. Small and large multinucleate schizonts. Note the refractile globules which persist in first generation development. H & E stain. Eimeria tenella. Small and large multinucleate schizonts. Note the refractile globules which persist in first generation development. H & E stain.
 742 Eimeria tenella. Incompletely segmented first generation schizont. Nuclei of the forming merozoites are clearly visible. F Giemsa stain. (58 hr). Eimeria tenella. Incompletely segmented first generation schizont. Nuclei of the forming merozoites are clearly visible. F Giemsa stain. (58 hr).
 743 Eimeria tenella. Mature first generation schizont 72 hours after inoculation. H & E stain. Eimeria tenella. Mature first generation schizont 72 hours after inoculation. H & E stain.
 744 Eimeria tenella. First-generation merozoites and second generation tr ophozoites. Note the absence of refractile globules. H & E stain. (72 hr). Eimeria tenella. First-generation merozoites and second generation tr ophozoites. Note the absence of refractile globules. H & E stain. (72 hr).
 745 Eimeria tenella. Immature second generation schizonts. Note multiple infections of single cells. H & E stain. (96 hr). Eimeria tenella. Immature second generation schizonts. Note multiple infections of single cells. H & E stain. (96 hr).
 746 Eimeria tenella. Second generation schizonts. Note that the  second generation merozoites are about twice as large as those of the first generation. H & E stain. (96 hr). Eimeria tenella. Second generation schizonts. Note that the second generation merozoites are about twice as large as those of the first generation. H & E stain. (96 hr).
 747 Eimeria tenella. Free second generation merozoites. H&E stain. (120 hr). Eimeria tenella. Free second generation merozoites. H&E stain. (120 hr).
 748 Eimeria tenella. Immature microgametocyte and immature macrogametocyte. Note the high nucleic acid content of the male gametocyte. Giemsa stain. (144 hr). Eimeria tenella. Immature microgametocyte and immature macrogametocyte. Note the high nucleic acid content of the male gametocyte. Giemsa stain. (144 hr).
 749 Eimeria tenella. Cluster of male and female gametocytes. Giemsa stain. Eimeria tenella. Cluster of male and female gametocytes. Giemsa stain.
 750 Eimeria tenella. Mature microgametocytes containing many microgametes. Giemsa stain. (216 hr). Eimeria tenella. Mature microgametocytes containing many microgametes. Giemsa stain. (216 hr).
 751 Eimeria tenella. Mature macrogametocyte. The central karyosome is clearly visible and the plastic granules appear as vacuoles at the periphery. Methyl green-toluidine blue stain. (168 hr). Eimeria tenella. Mature macrogametocyte. The central karyosome is clearly visible and the plastic granules appear as vacuoles at the periphery. Methyl green-toluidine blue stain. (168 hr).
 752 Eimeria tenella. Oocytes, 190 hr. after inoculation of cell culture with sporozoites. Giemsa stain. Eimeria tenella. Oocytes, 190 hr. after inoculation of cell culture with sporozoites. Giemsa stain.
 753 Schistosoma japonicum. Splenomegaly. Schistosoma japonicum. Splenomegaly.
 754 Schistosoma japonicum. Three and one half liters of ascitic fluid had been removed the previous day from this 16 year old boy. Schistosoma japonicum. Three and one half liters of ascitic fluid had been removed the previous day from this 16 year old boy.
 755 Schistosoma japonicum. Enlarged spleen at surgery. Schistosoma japonicum. Enlarged spleen at surgery.
 756 Schistosoma japonicum. Adults in colic vein. Schistosoma japonicum. Adults in colic vein.
 757 Schistosoma japonicum. Liver at surgery showing pseudotubercles. Schistosoma japonicum. Liver at surgery showing pseudotubercles.
 758 Schistosoma japonicum. Mesentery at surgery showing pseudotubercles. Schistosoma japonicum. Mesentery at surgery showing pseudotubercles.
 759 Schistosoma japonicum, Liver and splenic enlargement. Nearly 800 worms were removed from this patient. Schistosoma japonicum, Liver and splenic enlargement. Nearly 800 worms were removed from this patient.
 760 Schistosoma mansoni. Diagram showing mechanism used to filter adult schistosomes from the portal o'_ sto m of man and other hosts. Schistosoma mansoni. Diagram showing mechanism used to filter adult schistosomes from the portal o'_ sto m of man and other hosts.
 761 Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter. Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter.
 762 Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter. Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter.
 763 Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter. Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter.
 764 Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter. Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter.
 765 Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter. Schistosoma japonicum. Mobilization of hepatic vein and insertion of tubing leading to bypass filter.
 766 Schistosoma japonicurn. Filter and pump in place and functioning during filtration process. Schistosoma japonicurn. Filter and pump in place and functioning during filtration process.
 767 Schistosoma japonicum. Adult schistosomes caught in blood filter. Schistosoma japonicum. Adult schistosomes caught in blood filter.
 768 Schistosoma japonicum. Adults recovered by filtration technique. Schistosoma japonicum. Adults recovered by filtration technique.
 769 Schistosoma mansoni. Iidine stained egg from stool. Schistosoma mansoni. Iidine stained egg from stool.
 770 Haemadipsa zeylanica. land leech and cocoon. After a single blood meal, a leech may produce several cocoons. Ten or more young leeches may emerge from each cocoon. Emergence time depends upon temperature. At laboratory room temperature emergence time was around 30 days. Haemadipsa zeylanica. land leech and cocoon. After a single blood meal, a leech may produce several cocoons. Ten or more young leeches may emerge from each cocoon. Emergence time depends upon temperature. At laboratory room temperature emergence time was around 30 days.
 771 Haemadipsa zeylanica. Cocoon of a land leech. Such cocoons are about 0.5 cm. in greatest diameter. Haemadipsa zeylanica. Cocoon of a land leech. Such cocoons are about 0.5 cm. in greatest diameter.
 772 Phytobdella. A land leech collected on Luzon, republic of the Philippines. The specimen shown had been aroused by the breath of a technician. Hungry leeches are stimulated by the breath of hosts, body warmth, vibrations, and unknown factors. They move in 'inch worm' fashion towards the host with remarkable accuracy. The bite of most leeches is seldom noticed by the host, although one species of land leech is reported to cause a stinging sensation as it feeds. Phytobdella. A land leech collected on Luzon, republic of the Philippines. The specimen shown had been aroused by the breath of a technician. Hungry leeches are stimulated by the breath of hosts, body warmth, vibrations, and unknown factors. They move in 'inch worm' fashion towards the host with remarkable accuracy. The bite of most leeches is seldom noticed by the host, although one species of land leech is reported to cause a stinging sensation as it feeds.
 773 Phytobdella. The same specimen shown in the previous slide slightly more extended. Genus Phytobdella is unique in that species of the genus possess two rather than three jaws. Like all blood-sucking leeches, members of genus Phytobdella may increase their weight 8-10 fold during a blood meal. Phytobdella. The same specimen shown in the previous slide slightly more extended. Genus Phytobdella is unique in that species of the genus possess two rather than three jaws. Like all blood-sucking leeches, members of genus Phytobdella may increase their weight 8-10 fold during a blood meal.
 774 Hirudo nipponia and Hirudinaria manillensis. Aquatic leeches such as the medicinal leeches of genus Hirudo and large buffalo leeches of genus Hirudinaria must leave the water to deposit their cocoons in moist soil. These leeches may burrow several inches below the surface i n order to do so. Shown are a cocoon of the japanese medicinal leech, Hirudo nipponia, and a larger cocoon of the buffalo leech, Hirudinaria manillensis. Hirudo nipponia and Hirudinaria manillensis. Aquatic leeches such as the medicinal leeches of genus Hirudo and large buffalo leeches of genus Hirudinaria must leave the water to deposit their cocoons in moist soil. These leeches may burrow several inches below the surface i n order to do so. Shown are a cocoon of the japanese medicinal leech, Hirudo nipponia, and a larger cocoon of the buffalo leech, Hirudinaria manillensis.
 775 Hirudo nipponia and Hirudinaria manillensis. Blood-sucking leeches will often attack engorged leeches of other species. Shown are examples of Hirudo nipponia from Korea feeding on a recently engorged buffalo leech, Hirudinaria manillensis. Hirudo nipponia and Hirudinaria manillensis. Blood-sucking leeches will often attack engorged leeches of other species. Shown are examples of Hirudo nipponia from Korea feeding on a recently engorged buffalo leech, Hirudinaria manillensis.
 776 Dinobdella ferox. Adult nasal leeches may attain a length of 10 inches. Leeches newly emerged from cocoons, are less than a cm long. This specimen was stimulated by the breath of a technician. Dinobdella ferox. Adult nasal leeches may attain a length of 10 inches. Leeches newly emerged from cocoons, are less than a cm long. This specimen was stimulated by the breath of a technician.
 777 Entamoeba histolytica. Perirectal muco-cutaneous amebiasis. Entamoeba histolytica. Perirectal muco-cutaneous amebiasis.
 778 Trypanosoma cruzi. Type of house in which reduviid bugs are found in Costa Rica. Trypanosoma cruzi. Type of house in which reduviid bugs are found in Costa Rica.
 779 Trypanosoma cruzi. Close up of the same house. Trypanosoma cruzi. Close up of the same house.
 780 Trypanosoma cruzi. Reduviid bug in same house. Trypanosoma cruzi. Reduviid bug in same house.
 781 Trypanosoma cruzi. Catching a reduviid with forceps. Trypanosoma cruzi. Catching a reduviid with forceps.
 782 Trypanosoma cruzi. High power view of living reduviid held in forceps. Trypanosoma cruzi. High power view of living reduviid held in forceps.
 783 Trypanosoma cruzi. Reduviid bug before and after engorgement on blood. Trypanosoma cruzi. Reduviid bug before and after engorgement on blood.
 784 Trypanosoma cruzi. Reduviid bug before and after engorgement on blood. Trypanosoma cruzi. Reduviid bug before and after engorgement on blood.
 785 Trypanosoma cruzi. Armadillo, Significant host for Trypanosoma cruzi in Costa Rica. Trypanosoma cruzi. Armadillo, Significant host for Trypanosoma cruzi in Costa Rica.
 786 Leishmania donovani. Hepatosplenomegaly with left lobe of liver especially involved. Leishmania donovani. Hepatosplenomegaly with left lobe of liver especially involved.
 787 Leishmania donovani. Hepatosplenomegaly with left lobe of liver especially involved. Leishmania donovani. Hepatosplenomegaly with left lobe of liver especially involved.
 788 Leishmania donovani. Bone marrow smear from Brazilian patient Leishmania donovani. Bone marrow smear from Brazilian patient
 789 Schistosoma mansoni. Brazil. Right liver lobe enlargement. Schistosoma mansoni. Brazil. Right liver lobe enlargement.
 790 Schistosoma mansoni. Brazil. Right liver lobe enlargement. Schistosoma mansoni. Brazil. Right liver lobe enlargement.
 791 Dirofilaria immitis. Larvae in the malpighian tubes 12 days after ingestion by Aedes togoi. Dirofilaria immitis. Larvae in the malpighian tubes 12 days after ingestion by Aedes togoi.
 792 Dirofilaria immitis. Microfilaria in fresh canine blood. Dirofilaria immitis. Microfilaria in fresh canine blood.
 793 Dirofilaria immitis. Microfilaria in canine blood. Dirofilaria immitis. Microfilaria in canine blood.
 794 Dirofilaria immitis. Developing stage in canine muscle (intermediate developmental location) 112 days after experimental infection. Dirofilaria immitis. Developing stage in canine muscle (intermediate developmental location) 112 days after experimental infection.
 795 Dirofilaria immitis. Adult female from canine heart and 112 day old female from 'submuscle membrane'. Dirofilaria immitis. Adult female from canine heart and 112 day old female from 'submuscle membrane'.
 796 Dirofilaria immitis. Adult worms in the canine heart. Dirofilaria immitis. Adult worms in the canine heart.
 797 Dirofilaria immitis. Paradoxical embolus of adult worms at the bifurcation of the abdominal aorta and iliac arteries ( patent foramen ovate). Dirofilaria immitis. Paradoxical embolus of adult worms at the bifurcation of the abdominal aorta and iliac arteries ( patent foramen ovate).
 798 Dirofilaria immitis. Ascites due to infection. Dirofilaria immitis. Ascites due to infection.
 799 Dirofilaria immitis. Necrosis of hind limb caused by paradoxical embolus. Dirofilaria immitis. Necrosis of hind limb caused by paradoxical embolus.
 800 Simulium. Onchocerca volvulus. Larvae growing in wing musculature of Simulium. Simulium. Onchocerca volvulus. Larvae growing in wing musculature of Simulium.
 801 Simulium naevi, Onchocerca volvulus. An iron 'hematoxylin preparation of the tissues of Simulium naevi showing developing larvae of Onchocerca volvulus. Lower power view stained with iron hematoxylin. Simulium naevi, Onchocerca volvulus. An iron 'hematoxylin preparation of the tissues of Simulium naevi showing developing larvae of Onchocerca volvulus. Lower power view stained with iron hematoxylin.
 802 Wuchereria bancrofti. Adult worms ectopically located in the antecubital space of a Puerto Rican female. Wuchereria bancrofti. Adult worms ectopically located in the antecubital space of a Puerto Rican female.
 803 Wuchereria bancrofti. Adult worms ectopically located in the antecubital space of a Puerto Rican female. Wuchereria bancrofti. Adult worms ectopically located in the antecubital space of a Puerto Rican female.
 804 Wuchereria bancrofti. Mammary enlargement. Wuchereria bancrofti. Mammary enlargement.
 805 Wuchereria bancrofti. Elephantiasis of lower limbs. Wuchereria bancrofti. Elephantiasis of lower limbs.
 806 Wuchereria bancrofti. Elephantiasis of lower limbs. Wuchereria bancrofti. Elephantiasis of lower limbs.
 807 Wuchereria bancrofti. Scrotal enlargement. Wuchereria bancrofti. Scrotal enlargement.
 808 Acanthocheilonema perstans in Nigeria. Microfilaria. Acanthocheilonema perstans in Nigeria. Microfilaria.
 809 Acanthocheilonema perstans in Nigeria. Microfilaria. Acanthocheilonema perstans in Nigeria. Microfilaria.
 810 Ancylostoma caninum. Adult in dog intestine. Ancylostoma caninum. Adult in dog intestine.
 811 Ascaris lumbricoides. Lips en face. Ascaris lumbricoides. Lips en face.
 812 Ascaris lumbricoides. Eggs from liver abscess. Ascaris lumbricoides. Eggs from liver abscess.
 813 Trichuris trichiura. Prolapse of rectum secondary to infection with whipworm. Trichuris trichiura. Prolapse of rectum secondary to infection with whipworm.
 814 Trichuris trichiura. High power view of prolapsed rectum showing adult worms to better advantage. Trichuris trichiura. High power view of prolapsed rectum showing adult worms to better advantage.
 815 Capillaria philippinensis. Cross section of adults in bowel. Capillaria philippinensis. Cross section of adults in bowel.
 816 Capillaria philippinensis. Female and male adults. Capillaria philippinensis. Female and male adults.
 817 Capillaria philippinensis. Female and male adults. Capillaria philippinensis. Female and male adults.
 818 Capillaria philippinensis. Cross section of adults. Capillaria philippinensis. Cross section of adults.
 819 Trichuris trichiura. Adult woven into mucosa of 22 yr. old female Chinese female. Ulcerating carcinoma seen in lower power photographs. Trichuris trichiura. Adult woven into mucosa of 22 yr. old female Chinese female. Ulcerating carcinoma seen in lower power photographs.
 820 Trichuris trichiura. Adult woven into mucosa of 22 yr. old female Chinese female. Ulcerating carcinoma seen in lower power photographs. Trichuris trichiura. Adult woven into mucosa of 22 yr. old female Chinese female. Ulcerating carcinoma seen in lower power photographs.
 821 Trichuris trichiura. Adult woven into mucosa of 22 yr. old female Chinese female. Ulcerating carcinoma seen in lower power photographs. Trichuris trichiura. Adult woven into mucosa of 22 yr. old female Chinese female. Ulcerating carcinoma seen in lower power photographs.
 822 Dracunculus medinensis. Extracting worms by classical match stick technique. Dracunculus medinensis. Extracting worms by classical match stick technique.
 823 Dracunculus medinensis. Extracting worms by classical match stick technique. Dracunculus medinensis. Extracting worms by classical match stick technique.
 824 Dracunculus medinensis. Adult in subcutaneous tissues below breast. Dracunculus medinensis. Adult in subcutaneous tissues below breast.
 825 Dracunculus medinensis. Adult in a scrotum. Dracunculus medinensis. Adult in a scrotum.
 826 Dracunculus medinensis. Adult in a scrotum. Dracunculus medinensis. Adult in a scrotum.
 827 Dracunculus medinensis. Extraction of adults from scrotum. Dracunculus medinensis. Extraction of adults from scrotum.
 828 Strongyloides stercoralis. Fatal case in institutionalized child. Low power view showing adult in lumen of bowel. Strongyloides stercoralis. Fatal case in institutionalized child. Low power view showing adult in lumen of bowel.
 829 Strongyloides stercoralis. High power view of adult in lumen of bowel. Strongyloides stercoralis. High power view of adult in lumen of bowel.
 830 Strongyloides stercoralis. Same case. Portion of adult. Strongyloides stercoralis. Same case. Portion of adult.
 831 Strongyloides stercoralis. Same case. Portion of adult. Strongyloides stercoralis. Same case. Portion of adult.
 832 Strongyloides stercoralis. Same case. Portion of adult. Strongyloides stercoralis. Same case. Portion of adult.
 833 Strongyloides stercoralis. Same case. Portion of adult. Strongyloides stercoralis. Same case. Portion of adult.
 834 Strongyloides stercoralis. Same case. Portion of adult. Strongyloides stercoralis. Same case. Portion of adult.
 835 Strongyloides stercoralis. Same case. Portion of adult. Strongyloides stercoralis. Same case. Portion of adult.
 836 Strongyloides stercoralis. Same case. Portion of adult. Strongyloides stercoralis. Same case. Portion of adult.
 837 Strongyloides stercoralis. Same case. Portion of adult. Strongyloides stercoralis. Same case. Portion of adult.
 838 Strongyloides stercoralis. Larval forms invading submucosa. Marked inflammatory response. Strongyloides stercoralis. Larval forms invading submucosa. Marked inflammatory response.
 839 Strongyloides stercoralis. Giant cell formation in the inflammatory response. Strongyloides stercoralis. Giant cell formation in the inflammatory response.
 840 Taenia solium. An adult African male with numerous subcutaneous nodules which proved to be the larval parasite, Cysticercus cellulosae. Taenia solium. An adult African male with numerous subcutaneous nodules which proved to be the larval parasite, Cysticercus cellulosae.
 841 Taenia solium. A macroscopic view of the brain of same patient showing cysticerci. There is an easily visible cyst in one of the temporal lobes. Taenia solium. A macroscopic view of the brain of same patient showing cysticerci. There is an easily visible cyst in one of the temporal lobes.
 842 Taenia solium. Cysticercus in eye. Taenia solium. Cysticercus in eye.
 843 Hymenolepis diminuta. Larva. Hymenolepis diminuta. Larva.
 844 Echinococcus granulosus. Cyst in kidney. Echinococcus granulosus. Cyst in kidney.
 845 Echinococcus granulosus. Cyst in kidney. Echinococcus granulosus. Cyst in kidney.
 846 Echinococcus granulosus. Cyst in kidney. Echinococcus granulosus. Cyst in kidney.
 847 Echinococcus granulosus. Cysts in ureter. Echinococcus granulosus. Cysts in ureter.
 848 Echinococcus granulosus. Scolices illuminated with ultraviolet light. Echinococcus granulosus. Scolices illuminated with ultraviolet light.
 849 Entamoeba histolytica. Proctitis showing angry red mucosa. Entamoeba histolytica. Proctitis showing angry red mucosa.
 850 Entamoeba histolytica. Bowel perforation. White areas are paper showing through holes. Entamoeba histolytica. Bowel perforation. White areas are paper showing through holes.
 851 Entamoeba histolytica Autopsy specimen of large bowel. Entamoeba histolytica Autopsy specimen of large bowel.
 852 Entamoeba histolytica Fifteen month old child. Autopsy specimen showing cecum with ulcerations. Entamoeba histolytica Fifteen month old child. Autopsy specimen showing cecum with ulcerations.
 853 Entamoeba histolytica. X-ray showing liver abscess. with elevated right diaphragm and fluid level. Entamoeba histolytica. X-ray showing liver abscess. with elevated right diaphragm and fluid level.
 854 Entamoeba histolytica. Aspiration of liver abscess. Entamoeba histolytica. Aspiration of liver abscess.
 855 Plasmodium falciparum. Thick smear, field stain. Plasmodium falciparum. Thick smear, field stain.
 856 Plasmodium falciparum. Marked edema of face and neck secondary to nephrosis. Plasmodium falciparum. Marked edema of face and neck secondary to nephrosis.
 857 Leishmania mexicana. Ulceration of pinna. Leishmania mexicana. Ulceration of pinna.
 858 Pneumocystis carinii. Section of lung stained with Gomori's methenamine-silver nitrate. Pneumocystis carinii. Section of lung stained with Gomori's methenamine-silver nitrate.
 859 Trypanosoma rhodesiense Blood smear. Trypanosoma rhodesiense Blood smear.
 860 Trypanosoma rhodesiense Blood smear. Trypanosoma rhodesiense Blood smear.
 861 Sarcoptes scabiei. In skin. Sarcoptes scabiei. In skin.
 862 Trypanosoma cruzi. Tree nest from which reduviid bugs were collected. Trypanosoma cruzi. Tree nest from which reduviid bugs were collected.
 863 Trypanosoma cruzi. Examining nest for reduviids. Trypanosoma cruzi. Examining nest for reduviids.
 864 Trypanosoma cruzi. Examining nest for reduviids. Trypanosoma cruzi. Examining nest for reduviids.
 865 Tick Mouth parts in skin. Tick Mouth parts in skin.
 866 Tick Mouth parts in skin. Tick Mouth parts in skin.
 867 Leishmania. Bolivia. Mucocutaneous destruction. Leishmania. Bolivia. Mucocutaneous destruction.
 868 Leishmania. Bolivia. Mucocutaneous destruction. Leishmania. Bolivia. Mucocutaneous destruction.
 869 Leishmania. Bolivia. Mucocutaneous destruction. Leishmania. Bolivia. Mucocutaneous destruction.
 870 Leishmania. Bolivia. Mucocutaneous destruction. Leishmania. Bolivia. Mucocutaneous destruction.
 871 Leishmania. Lesions of forearms. Costa Rica. Leishmania. Lesions of forearms. Costa Rica.
 872 Leishmania. Healed facial scar. 'Seal of the Forest'. Costa Rica. Leishmania. Healed facial scar. 'Seal of the Forest'. Costa Rica.
 873 Frenkelia. Young cysts in bank vole brain smear (Clethrionomys glareolus). Giemsa stain. Frenkelia. Young cysts in bank vole brain smear (Clethrionomys glareolus). Giemsa stain.
 874 Frenkelia. Young cyst from brain of Clethrionomys glareolus. Giemsa Collophoninim. Frenkelia. Young cyst from brain of Clethrionomys glareolus. Giemsa Collophoninim.
 875 Frenkelia. Old cyst from brain. Degeneration in center. Giemsa. Collophoninim. Frenkelia. Old cyst from brain. Degeneration in center. Giemsa. Collophoninim.
 876 Frenkelia. Ruptured cyst from brain of Clethrionomys glareolus. Elongate form is the endocyst. Round form is the metrocyst. Frenkelia. Ruptured cyst from brain of Clethrionomys glareolus. Elongate form is the endocyst. Round form is the metrocyst.
 877 Schistosoma haematobium Egyptian male, approximately 10 years old. Urinary bladder with red elevated lesions at the apex and along the right ureteral orifice. Live eggs were not found distant to these foci suggesting that the adult worms nest at one site for some time. Eight pairs of adults were found in the bladder vasculature. Schistosoma haematobium Egyptian male, approximately 10 years old. Urinary bladder with red elevated lesions at the apex and along the right ureteral orifice. Live eggs were not found distant to these foci suggesting that the adult worms nest at one site for some time. Eight pairs of adults were found in the bladder vasculature.
 878 Schistosoma mansoni. Same patient had a stalked polyp of the sigmoid colon. The polyp contained numerous eggs of S. haematobium and a few eggs of S. mansoni. Isolated intestinal polyps are not infrequent among Egyptians infected with S, mansoni or S. haematobium. They are less frequently seen in Brazilians suffering from S. mansoni infections. Schistosoma mansoni. Same patient had a stalked polyp of the sigmoid colon. The polyp contained numerous eggs of S. haematobium and a few eggs of S. mansoni. Isolated intestinal polyps are not infrequent among Egyptians infected with S, mansoni or S. haematobium. They are less frequently seen in Brazilians suffering from S. mansoni infections.
 879 Schistosoma haematobium. Egyptian male, 26 years old. Surgically excised urinary bladder, containing 156,000 eggs per gram of host tissue. Eighteen pairs of adults were recovered from the specimen. the pearly white area near the apex is indicative of squamous metaplasia. the large ulcerated mass on the right side of the  ladder is a squamous cell carcinoma. The tan surface of the remainder of the bladder is a mass of confluent sandy (granulomatous) patches. Schistosoma haematobium. Egyptian male, 26 years old. Surgically excised urinary bladder, containing 156,000 eggs per gram of host tissue. Eighteen pairs of adults were recovered from the specimen. the pearly white area near the apex is indicative of squamous metaplasia. the large ulcerated mass on the right side of the ladder is a squamous cell carcinoma. The tan surface of the remainder of the bladder is a mass of confluent sandy (granulomatous) patches.
 880 Schistosoma mansoni. Classical colonic polyposis in a surgically resected portion of colon. Patient was a 20 year old Egyptian male. Specimen fixed it formalin. Schistosoma mansoni. Classical colonic polyposis in a surgically resected portion of colon. Patient was a 20 year old Egyptian male. Specimen fixed it formalin.
 881 Schistosoma mansoni and Schistosoma haematobium. Hemicolectomy specimen from 40 year old Egyptian male showing large bilharzioma adjacent to the rectosigmoid colon. Several polyps were present in the intestine. The bilharzioma was composed mainly of fibroticc granulomas. About 23,000 S. mansoni eggs and 1,500 S. haematohium eggs per gram of polyp and/or bilharzioma were present. Irregular fibrous masses were present in the colonic serosa as well. Numerous S. mansoni adults were found in the specimen.  Surgery was scheduled to provide relief from urinary tract obstruction (right ureter) caused by S. haematobium. The colon was resected because the mass was suspected to be cancer. Schistosoma mansoni and Schistosoma haematobium. Hemicolectomy specimen from 40 year old Egyptian male showing large bilharzioma adjacent to the rectosigmoid colon. Several polyps were present in the intestine. The bilharzioma was composed mainly of fibroticc granulomas. About 23,000 S. mansoni eggs and 1,500 S. haematohium eggs per gram of polyp and/or bilharzioma were present. Irregular fibrous masses were present in the colonic serosa as well. Numerous S. mansoni adults were found in the specimen. Surgery was scheduled to provide relief from urinary tract obstruction (right ureter) caused by S. haematobium. The colon was resected because the mass was suspected to be cancer.
 882 Schistosoma mansoni and Schistosoma haematobium Surgically resected colon from 18 year old Egyptian male showing lumen filled with multiple polyps. Wall of colon was also fibrotic. Discolored by formalin fixation prior to photography. Schistosoma mansoni and Schistosoma haematobium Surgically resected colon from 18 year old Egyptian male showing lumen filled with multiple polyps. Wall of colon was also fibrotic. Discolored by formalin fixation prior to photography.
 883 Schistosoma mansoni and Schistosoma haematohium. Same patient. Multiple cross sections showing extensive fibrosis associated with egg burdens of 110,000 (S. mansoni) and 1,500 (S. haematohium) per gram of host tissue. Schistosoma mansoni and Schistosoma haematohium. Same patient. Multiple cross sections showing extensive fibrosis associated with egg burdens of 110,000 (S. mansoni) and 1,500 (S. haematohium) per gram of host tissue.
 884 Schistosoma mansoni. Autopsy specimen of 27 year old Brazilian male who died of hematemesis associated with hepatosplenomegaly. One hundred eighty-three active adult pairs were counted at autopsy. The external surface of the liver was bosselated. Although this was the most typical appearance, the liver surface is sometimes smooth or finely nodular in such cases. Schistosoma mansoni. Autopsy specimen of 27 year old Brazilian male who died of hematemesis associated with hepatosplenomegaly. One hundred eighty-three active adult pairs were counted at autopsy. The external surface of the liver was bosselated. Although this was the most typical appearance, the liver surface is sometimes smooth or finely nodular in such cases.
 885 Schistosoma mansoni. Same patient. Cut surface of liver showed marked periportal fibrosis, the intervening parenchyma being fairly normal. Many cases with severe disease show less portal fibrosis. The enlarged spleen weighed 700 grams. Schistosoma mansoni. Same patient. Cut surface of liver showed marked periportal fibrosis, the intervening parenchyma being fairly normal. Many cases with severe disease show less portal fibrosis. The enlarged spleen weighed 700 grams.
 886 Taenia solium. Asymptomatic cerebral cysticercosis. Taenia solium. Asymptomatic cerebral cysticercosis.
 887 Ascaris lumbricoides Fatal peritonitis due to Ascaris. Ascaris lumbricoides Fatal peritonitis due to Ascaris.
 888 Ascaris lumbricoides. Autopsy specimen showing abscess involving liver and diaphragm resulting from migrating adult ascarids. One transected adult ascarid protrudes from a bile duct. Ascaris lumbricoides. Autopsy specimen showing abscess involving liver and diaphragm resulting from migrating adult ascarids. One transected adult ascarid protrudes from a bile duct.
 889 Ascaris lumbricoides. Autopsy specimen showing adult in ampulla of Vater. Ascaris lumbricoides. Autopsy specimen showing adult in ampulla of Vater.
 890 Trichuris trichiura, Ascaris lumbricoides, Balantidium coil, Entamoeba histolytica. Autopsy specimen showing adult helminths, ulcerations and bloody intestinal contents. Trichuris trichiura, Ascaris lumbricoides, Balantidium coil, Entamoeba histolytica. Autopsy specimen showing adult helminths, ulcerations and bloody intestinal contents.
 891 Trichuris trichiura, Ascaris lumbricoides, Balantidium coil, Entamoeba histolytica. Autopsy specimen showing adult helminths, ulcerations and bloody intestinal contents. Trichuris trichiura, Ascaris lumbricoides, Balantidium coil, Entamoeba histolytica. Autopsy specimen showing adult helminths, ulcerations and bloody intestinal contents.
 892 Trichuris trichiura, Ascaris lumbricoides, Balantidium coil, Entamoeba histolytica. Autopsy specimen showing adult helminths, ulcerations and bloody intestinal contents. Trichuris trichiura, Ascaris lumbricoides, Balantidium coil, Entamoeba histolytica. Autopsy specimen showing adult helminths, ulcerations and bloody intestinal contents.
 893 Onchocerca volvulus. Nodules in scalp and forehead. Onchocerca volvulus. Nodules in scalp and forehead.
 894 Onchocerca volvulus. Nodules in scalp and forehead. Onchocerca volvulus. Nodules in scalp and forehead.
 895 Onchocerca volvulus. Nodules in scalp and forehead. Onchocerca volvulus. Nodules in scalp and forehead.
 896 Onchocerca volvulus. Taking skin snip for diagnosis. Onchocerca volvulus. Taking skin snip for diagnosis.
 897 Onchocerca volvulus. Women washing clothes, in stream which produces biting flies, in endemic region. Onchocerca volvulus. Women washing clothes, in stream which produces biting flies, in endemic region.
 898 Syngamus trachea. Several pairs are seen in the trachea of a turkey. Syngamus trachea. Several pairs are seen in the trachea of a turkey.
 899 Dioctophyma renale. Recovered from abdomen of dog in St. Paul, Minn. Dioctophyma renale. Recovered from abdomen of dog in St. Paul, Minn.
 900 Wuchereria bancrofti. Anterior end of microfilaria in blood film. Wuchereria bancrofti. Anterior end of microfilaria in blood film.
 901 Wuchereria bancrofti. Posterior portion of microfilaria in blood film. Wuchereria bancrofti. Posterior portion of microfilaria in blood film.
 902 Wuchereria bancrofti. Entire microfilaria in blood film. Wuchereria bancrofti. Entire microfilaria in blood film.
 903 Wuchereria bancrofti. Anterior end of same microfilaria. Wuchereria bancrofti. Anterior end of same microfilaria.
 904 Wuchereria bancrofti. Posterior end of same microfilaria. Wuchereria bancrofti. Posterior end of same microfilaria.
 905 Wuchereria bancrofti. Posterior end of another microfilaria. Wuchereria bancrofti. Posterior end of another microfilaria.
 906 Echinococcus granulosus Hydatid dosing strip, wherein dogs are given enemas, their stools recovered and examined for evidence of infection. Echinococcus granulosus Hydatid dosing strip, wherein dogs are given enemas, their stools recovered and examined for evidence of infection.
 907 Echinococcus granulosus Three men giving one dog one enema. Echinococcus granulosus Three men giving one dog one enema.
 908 Echinococcus granulosus Recovering the fruits of their labor. Echinococcus granulosus Recovering the fruits of their labor.
 909  Muiticeps A 32 month old white male in South Dakota suffered progressive lassitude, anorexia, irritability, incoordination and infrequent vomiting. A suboccipital craniotomy was performed during which a grape-like mass of translucent thin wall cysts was discovered and partially evacuated withdifficulty.. Subsequently patient developed flexion rigidity of the extremities, non-reactive pupils and decreased consciousness. A sinus tract at the operative site contained more cysts. The patient died three months after the onset of symptoms. Muiticeps A 32 month old white male in South Dakota suffered progressive lassitude, anorexia, irritability, incoordination and infrequent vomiting. A suboccipital craniotomy was performed during which a grape-like mass of translucent thin wall cysts was discovered and partially evacuated withdifficulty.. Subsequently patient developed flexion rigidity of the extremities, non-reactive pupils and decreased consciousness. A sinus tract at the operative site contained more cysts. The patient died three months after the onset of symptoms.
 910 Muiticeps Cysts removed from patient. Muiticeps Cysts removed from patient.
 911 Muiticeps Cyst wall with two scolices in field. Muiticeps Cyst wall with two scolices in field.
 912 Muiticeps Cyst wall with two scolices in field. Muiticeps Cyst wall with two scolices in field.
 913 Muiticeps Cyst wall with two scolices in field. Muiticeps Cyst wall with two scolices in field.
 914 Muiticeps Higher power views of one scolex. Muiticeps Higher power views of one scolex.
 915 Multiceps. Section through scolex and membrane. Multiceps. Section through scolex and membrane.
 916 Trypanosome rhodesiense Positive blood smear in patient traveling independently in endemic region. Diagnosis made in N.Y.C. Trypanosome rhodesiense Positive blood smear in patient traveling independently in endemic region. Diagnosis made in N.Y.C.
 917 Trypanosome rhodesiense In spinal fluid of same patient. Trypanosome rhodesiense In spinal fluid of same patient.
 918 Trypanosome rhodesiense. Higher power view of trypanosome in spinal fluid of same patient. Trypanosome rhodesiense. Higher power view of trypanosome in spinal fluid of same patient.
 919 Clonorchis sinensis. Adult liver fluke crawling from bile duct of transected cirrhotic liver. Clonorchis sinensis. Adult liver fluke crawling from bile duct of transected cirrhotic liver.
 920 Hymen olepis diminuta. Hatching egg. Hymen olepis diminuta. Hatching egg.
 921 Hymen olepis diminuta. Hatching egg. Hymen olepis diminuta. Hatching egg.
 922 Dipylidium caninum. Packets of eggs in dog stool. Dipylidium caninum. Packets of eggs in dog stool.
 923 Schistosoma japonicum. Egg in stool. Small lateral spine visible. Schistosoma japonicum. Egg in stool. Small lateral spine visible.
 924 Giardia lamblia. Trichrome stained peroral biopsy of duodenum showing trophozoites in close proximity to mucosa. Giardia lamblia. Trichrome stained peroral biopsy of duodenum showing trophozoites in close proximity to mucosa.
 925 Giardia lamblia. Trichrome stained peroral biopsy of duodenum showing trophozoites in close proximity to mucosa. Giardia lamblia. Trichrome stained peroral biopsy of duodenum showing trophozoites in close proximity to mucosa.
 926 Giardia lamblia. Protargol stained trophozoites in stool. Giardia lamblia. Protargol stained trophozoites in stool.
 927 Trichomonas vaginalis Several flagella and the nucleus are easily seen. Trichomonas vaginalis Several flagella and the nucleus are easily seen.
 928 Entamoeba coil. Stool. Iodine stained cysts showing different numbers of nuclei. Entamoeba coil. Stool. Iodine stained cysts showing different numbers of nuclei.
 929 Entamoeba coil. Stool. Iodine stained cysts showing different numbers of nuclei. Entamoeba coil. Stool. Iodine stained cysts showing different numbers of nuclei.
 930 Entamoeba coil. Stool. Iodine stained cysts showing different numbers of nuclei. Entamoeba coil. Stool. Iodine stained cysts showing different numbers of nuclei.
 931 Entamoeba coil. Stool. Iodine stained cysts showing different numbers of nuclei. Entamoeba coil. Stool. Iodine stained cysts showing different numbers of nuclei.
 932 Taenia. Eggs in stool. Taenia. Eggs in stool.
 933 Strongyloides stercoralis Rhabditiform larva in stool. Strongyloides stercoralis Rhabditiform larva in stool.
 934 Enterobius vermicularis. Egg in stool, iodine stain. Enterobius vermicularis. Egg in stool, iodine stain.
 935 Cutaneous larva migrans. Feet and buttocks involved. White material is probably an ointment. Cutaneous larva migrans. Feet and buttocks involved. White material is probably an ointment.
 936 Cutaneous larva migrans. Feet and buttocks involved. White material is probably an ointment. Cutaneous larva migrans. Feet and buttocks involved. White material is probably an ointment.
 937 Toxocara. Egg in stool of St. Bernard dog. Toxocara. Egg in stool of St. Bernard dog.
 938 Glossina. Wet and dry season fauna in riverine region serving as breeding ground for tsetse flies. Glossina. Wet and dry season fauna in riverine region serving as breeding ground for tsetse flies.
 939 Glossina. Wet and dry season fauna in riverine region serving as breeding ground for tsetse flies. Glossina. Wet and dry season fauna in riverine region serving as breeding ground for tsetse flies.
 940 Glossina. A mile wide clearing of shrubs and trees significantly limited Glossing breeding. Glossina. A mile wide clearing of shrubs and trees significantly limited Glossing breeding.
 941 Plasmodium falciparum. Hepatosplenomegaly in a child. Photos 984-997 . A 60 year old white male received 10 pints of blood shortly before, during and after gastrectomy for a benign gastric ulcer. One of the donors, a previously infected veteran of the Viet Nam war, registered at a blood bank under a false name and address. Approximately four weeks after the surgery the patient developed a fatal case of falciparum malaria. Plasmodium falciparum. Hepatosplenomegaly in a child. Photos 984-997 . A 60 year old white male received 10 pints of blood shortly before, during and after gastrectomy for a benign gastric ulcer. One of the donors, a previously infected veteran of the Viet Nam war, registered at a blood bank under a false name and address. Approximately four weeks after the surgery the patient developed a fatal case of falciparum malaria.
 942 Leishmania donovani. Severe, terminal emaciation in kala azar. Leishmania donovani. Severe, terminal emaciation in kala azar.
 943 Leishmania donovani. Severe, terminal emaciation in kala azar. Leishmania donovani. Severe, terminal emaciation in kala azar.
 944 Leishmania donovani. Hepatosplenomegaly in kala azar. Leishmania donovani. Hepatosplenomegaly in kala azar.
 945 Leishmania donovani. Hepatosplenomegaly in kala azar. Leishmania donovani. Hepatosplenomegaly in kala azar.
 946 Leishmania donovani. Trench dug through region tunneled by gerbils. Transected tunnels are then searched for eggs and larvae of Phlebotomus flies. Leishmania donovani. Trench dug through region tunneled by gerbils. Transected tunnels are then searched for eggs and larvae of Phlebotomus flies.
 947 Leishmania donovani. Gerbils. Leishmania donovani. Gerbils.
 948 Leishmania donovani. Gerbils. Leishmania donovani. Gerbils.
 949 Leishmania tropics. Immunization by induced lesions in a young Soviet worker in Kirovabad area of Azerbaijan, USSR. In southern U.S.S.R. the 'Large Gerbil,' Thombomys apimus, which lives in vast subterranean chambers like our prairie dog, serves as ao reservoir host for the zoonotic form of L e i s h m a n i a tropica, associated with 'wet lesions', in that area. 160. Leucocyte polymorphonuclear. This polymorphonuclear leucocyte was identified as a cyst of Entamoeba histolytica during examination of a stool. Leishmania tropics. Immunization by induced lesions in a young Soviet worker in Kirovabad area of Azerbaijan, USSR. In southern U.S.S.R. the 'Large Gerbil,' Thombomys apimus, which lives in vast subterranean chambers like our prairie dog, serves as ao reservoir host for the zoonotic form of L e i s h m a n i a tropica, associated with 'wet lesions', in that area. 160. Leucocyte polymorphonuclear. This polymorphonuclear leucocyte was identified as a cyst of Entamoeba histolytica during examination of a stool.
 950 Onchocerca volvulus. Forehead lesions are unusual in Africa, but they do occur. Onchocerca volvulus. Forehead lesions are unusual in Africa, but they do occur.
 951 Leishmania braziliensis. Destruction of nasal septum. Leishmania braziliensis. Destruction of nasal septum.
 952 Leishmania braziliensis. Reconstruction of nose with skin flap from the forehead. Leishmania braziliensis. Reconstruction of nose with skin flap from the forehead.
 953 Schistosoma japonicum. Egg in stool. Schistosoma japonicum. Egg in stool.
 954 Balantidium coli. Trophozoite in stool. Balantidium coli. Trophozoite in stool.
 955 Ascaris lumbricoides. larvae in guinea pig bronchus. Ascaris lumbricoides. larvae in guinea pig bronchus.
 956 Ascaris lumbricoides. Larvae in alveoli of a guinea pig. Ascaris lumbricoides. Larvae in alveoli of a guinea pig.
 957 Ascaris lumbricoides. Larvae in alveoli of a guinea pig. Ascaris lumbricoides. Larvae in alveoli of a guinea pig.
 958 Ascaris lumbricoides. Larvae in alveolus of guinea pig. Ascaris lumbricoides. Larvae in alveolus of guinea pig.
 959 Ascaris lumbricoides Cross section - through larva found in pleural effusion of a patient from Mt. Kisco, New York. Ascaris lumbricoides Cross section - through larva found in pleural effusion of a patient from Mt. Kisco, New York.
 960 Ascaris lumbricoides Cross section - through larva found in pleural effusion of a patient from Mt. Kisco, New York. Ascaris lumbricoides Cross section - through larva found in pleural effusion of a patient from Mt. Kisco, New York.
 961 Taenia saginata. Adult. Taenia saginata. Adult.
 962 Taenia saginata Cysticerci digested free from cattle muscle. Taenia saginata Cysticerci digested free from cattle muscle.
 963 Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful. Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful.
 964 Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful. Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful.
 965 Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful. Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful.
 966 Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful. Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful.
 967 Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful. Lucilia. Myiasis. Premature infant died shortly after birth. Numerous first stage larvae were present in the ear. Similar larvae were recovered from the mother's vulva. Efforts to rear maggots were unsuccessful.
 968 Ascaris lumbricoides. A 3 1/2 year old Caucasian male from Southeastern West Virginia was seen in semi-comatose state, exhibiting weight loss, jaundice, fever, nystagmus, enlarged knobby liver, and pulmonary infiltrate. WBC was 21,400 of which 18% were eosinophiles. Adult A s c a r i s were seen in stools. Patient responded to corticosteroid therapy and recovered slowly following exploratory surgery Liver biopsy showed Ascaris eggs and eosinophilic granulomata. Ascaris lumbricoides. A 3 1/2 year old Caucasian male from Southeastern West Virginia was seen in semi-comatose state, exhibiting weight loss, jaundice, fever, nystagmus, enlarged knobby liver, and pulmonary infiltrate. WBC was 21,400 of which 18% were eosinophiles. Adult A s c a r i s were seen in stools. Patient responded to corticosteroid therapy and recovered slowly following exploratory surgery Liver biopsy showed Ascaris eggs and eosinophilic granulomata.
 969 Trichuris trichiura, Ascaris lumbricoides, and Enterobius vermicularis. Eggs demonstrated on a single scotch tape preparation taken from an eight year old Caucasian female living on isolated rural non-farm land in northern West Virginia. This slide clearly demonstrates that eggs other then Enterobi us, may be picked up by the scotch tape technique. Trichuris trichiura, Ascaris lumbricoides, and Enterobius vermicularis. Eggs demonstrated on a single scotch tape preparation taken from an eight year old Caucasian female living on isolated rural non-farm land in northern West Virginia. This slide clearly demonstrates that eggs other then Enterobi us, may be picked up by the scotch tape technique.
 970 Trypanosoma cruzi. Epidemiology. Typical semi-arid landscape of the upper Maranon river valley where Chagas' disease i s endemic. Trypanosoma cruzi. Epidemiology. Typical semi-arid landscape of the upper Maranon river valley where Chagas' disease i s endemic.
 971 Trypanosoma cruzi. Epidemiology. Typical adobe house with thatched roof within which are found people, chickens, guinea pigs, and infected triatomines. The most important vector here was Rhodnius ecuadoriesis. Trypanosoma cruzi. Epidemiology. Typical adobe house with thatched roof within which are found people, chickens, guinea pigs, and infected triatomines. The most important vector here was Rhodnius ecuadoriesis.
 972 Trypanosoma cruzi. Epidemiology. Typical peasant owner of adobe house i n upper Maronon valley. Many Trypanosoma cruzi infected triatomines were found in his house and in the tree behind him. Trypanosoma cruzi. Epidemiology. Typical peasant owner of adobe house i n upper Maronon valley. Many Trypanosoma cruzi infected triatomines were found in his house and in the tree behind him.
 973 Trypanosoma cruzi. Epidemiology. A yellow cloth spread on the ground serves as a background in the search for all stages of triatomines which might be present in the bark and branches of a tree adjacent to the infested adobe house. Trypanosoma cruzi. Epidemiology. A yellow cloth spread on the ground serves as a background in the search for all stages of triatomines which might be present in the bark and branches of a tree adjacent to the infested adobe house.
 974 Belimus peruvianus. Living in close association with an infected opossum, this primitive insect was occasionally found in adobe hut and was of some significance in the epidemiology of Chagas' disease in the upper Maranon river valley of Peru. Belimus peruvianus. Living in close association with an infected opossum, this primitive insect was occasionally found in adobe hut and was of some significance in the epidemiology of Chagas' disease in the upper Maranon river valley of Peru.
 975 Belimus peruvianus. Living in close association with an infected opossum, this primitive insect was occasionally found in adobe hut and was of some significance in the epidemiology of Chagas' disease in the upper Maranon river valley of Peru. Belimus peruvianus. Living in close association with an infected opossum, this primitive insect was occasionally found in adobe hut and was of some significance in the epidemiology of Chagas' disease in the upper Maranon river valley of Peru.
 976 Belimus peruvianus. A pinned museum specimen. Belimus peruvianus. A pinned museum specimen.
 977 Rhodnius pictipes. Trapped in Trinidad. Rhodnius pictipes. Trapped in Trinidad.
 978 Panstrongylus humeralis. A wild species present in Trinidad. All triatomes are potential vectors of Trypanosome cruzi. Panstrongylus humeralis. A wild species present in Trinidad. All triatomes are potential vectors of Trypanosome cruzi.
 979 Multiple infections. Didelphys. An opossum caught near one the adobe houses in the upper Maranon river valley. This animal was found to be naturally infected with Trypanosome cruzi, Trypanosome rangeli, and numerous helminths. Multiple infections. Didelphys. An opossum caught near one the adobe houses in the upper Maranon river valley. This animal was found to be naturally infected with Trypanosome cruzi, Trypanosome rangeli, and numerous helminths.
 980 Choloepus hoffmani. A Panamanian sloth often found harboring Trypanosome cruzi. Choloepus hoffmani. A Panamanian sloth often found harboring Trypanosome cruzi.
 981 Giardia lamblia. Cysts in feces. Iodine stained wet mount. Giardia lamblia. Cysts in feces. Iodine stained wet mount.
 982 Iodamoeba butschlii. Cysts in feces. Iodine stained wet mount. Iodamoeba butschlii. Cysts in feces. Iodine stained wet mount.
 983 Entamoeba coli. Cysts in feces. Iodine stained wet mount. Entamoeba coli. Cysts in feces. Iodine stained wet mount.
 984 Plasmodium falciparum. Blood smear showing rings and gametocyte. Plasmodium falciparum. Blood smear showing rings and gametocyte.
 985 Plasmodium falciparum. Deeply pigmented enlarged liver, kidney and sectioned vertebral bodies. Plasmodium falciparum. Deeply pigmented enlarged liver, kidney and sectioned vertebral bodies.
 986 Plasmodium falciparum. For the purposes of comparison, the infected dark liver was photographed next to a 'normal' liver. Plasmodium falciparum. For the purposes of comparison, the infected dark liver was photographed next to a 'normal' liver.
 987 Plasmodium falciparum. Demonstration of malarial pigment in the liver at the microscopic level. Plasmodium falciparum. Demonstration of malarial pigment in the liver at the microscopic level.
 988 Plasmodium falciparum. Bile, iron and malarial pigment are demonstrated in this slide. Plasmodium falciparum. Bile, iron and malarial pigment are demonstrated in this slide.
 989 Plasmodium falciparum. The enlarged, heavily pigmented spleen is seen in gross section. Plasmodium falciparum. The enlarged, heavily pigmented spleen is seen in gross section.
 990 Plasmodium falciparum. Demonstration of pigment in spleen of same patient at the microscopic level. Plasmodium falciparum. Demonstration of pigment in spleen of same patient at the microscopic level.
 991 Plasmodium falciparum. The deep brown color of kidney and bone marrow are indicative of pigment deposition. Plasmodium falciparum. The deep brown color of kidney and bone marrow are indicative of pigment deposition.
 992 Plasmodium falciparum. The deep brown color of kidney and bone marrow are indicative of pigment deposition. Plasmodium falciparum. The deep brown color of kidney and bone marrow are indicative of pigment deposition.
 993 Plasmodium falciparum. Giemsa stained section of kidneys showing lobular proliferation with mesangial cells plus pigment deposits. Protein present i n Bowman's space. Hydropic changes are present in tubular epithelium. Plasmodium falciparum. Giemsa stained section of kidneys showing lobular proliferation with mesangial cells plus pigment deposits. Protein present i n Bowman's space. Hydropic changes are present in tubular epithelium.
 994 Plasmodium falciparum. Section of kidney stained to demonstrate iron in lumen and epithelial cells. Plasmodium falciparum. Section of kidney stained to demonstrate iron in lumen and epithelial cells.
 995 Plasmodium falciparum. Kidney stained by the Dunn-Thompson method to demonstrate pigments in tubules. Plasmodium falciparum. Kidney stained by the Dunn-Thompson method to demonstrate pigments in tubules.
 996 Plasmodium falciparum. Deeply stained marrow indicative of pigment deposition. Gross specimen. Plasmodium falciparum. Deeply stained marrow indicative of pigment deposition. Gross specimen.
 997 Plasmodium falciparum. Malarial pigment in microscopic section of bone marrow. Plasmodium falciparum. Malarial pigment in microscopic section of bone marrow.
 998 Endolimax nana. Cysts in feces. Iodine stained wet mount. Endolimax nana. Cysts in feces. Iodine stained wet mount.
 999 Syngamus trachea. Egg. Syngamus trachea. Egg.
 1000 Leishmania donovani. Electron photomicrograph of a parasite in a hamster spleen. Leishmania donovani. Electron photomicrograph of a parasite in a hamster spleen.
 1001 Leishmania donovani. A single parasite is present within a spleen cell. Flagellum and associated structures are well seen. Leishmania donovani. A single parasite is present within a spleen cell. Flagellum and associated structures are well seen.
 1002 Leishmania donovani. A single specimen showing cross section through a flagellum, associated structures, and nucleus. Leishmania donovani. A single specimen showing cross section through a flagellum, associated structures, and nucleus.
 1003 Leishmania donovani. A single specimen showing cross section through a flagellum. Leishmania donovani. A single specimen showing cross section through a flagellum.
 1004 Leishmania donovani. A single specimen in early division with double flagellum and large mucous. Leishmania donovani. A single specimen in early division with double flagellum and large mucous.
 1005 Leishmania donovani. Longitudinal section showing two flagella in a dividing specimen. Leishmania donovani. Longitudinal section showing two flagella in a dividing specimen.
 1006 Leishmania donovani. Division nearly completed. Leishmania donovani. Division nearly completed.
 1007 Leishmania donovani. Nucleus, membranes, and other organelles shown in relation to the surrounding host cell, which contain streaks of amyloid. Leishmania donovani. Nucleus, membranes, and other organelles shown in relation to the surrounding host cell, which contain streaks of amyloid.
 1008 Leishmania donovani. Low power view showing multiple parasites in a single host cell. Leishmania donovani. Low power view showing multiple parasites in a single host cell.
 1009 Brugia Adolescent filaria in pulmonary artery. Low and high power view. Elastic Berhoeff stain. Brugia Adolescent filaria in pulmonary artery. Low and high power view. Elastic Berhoeff stain.
 1010 Brugia Adolescent filaria in pulmonary artery. Low and high power view. Elastic Berhoeff stain. Brugia Adolescent filaria in pulmonary artery. Low and high power view. Elastic Berhoeff stain.
 1011 Brugia Low power view of same parasite. H & E stain. Brugia Low power view of same parasite. H & E stain.
 1012 Brugia. Gross surgical specimen of nodule containing parasite. Brugia. Gross surgical specimen of nodule containing parasite.
 1013 Brugia Low power view of an inflammatory pulmonary nodule around a Brugia. Brugia Low power view of an inflammatory pulmonary nodule around a Brugia.
 1014 Enterobius vermicularis. Low and high power views of parasite in pulmonary nodule. Enterobius vermicularis. Low and high power views of parasite in pulmonary nodule.
 1015 Enterobius vermicularis. Low and high power views of parasite in pulmonary nodule. Enterobius vermicularis. Low and high power views of parasite in pulmonary nodule.
 1016 Enterobius vermicularis. Cross section through uterus containing many typical plani-convex ova. Enterobius vermicularis. Cross section through uterus containing many typical plani-convex ova.
 1017 Brugia. Peripheral nodule seen in chest x-ray. Brugia. Peripheral nodule seen in chest x-ray.
 1018 Enterobius vermicularis. Laminogram of spherical lung lesion containing adult parasite. Enterobius vermicularis. Laminogram of spherical lung lesion containing adult parasite.
 1019 Trypanosoma evansi. SAK strain in infected mouse blood, showing post-nuclear vacuoles. Trypanosoma evansi. SAK strain in infected mouse blood, showing post-nuclear vacuoles.
 1020 Trypanosoma cruzi. HeLa cell culture infected with Peru strain. Trypanosoma cruzi. HeLa cell culture infected with Peru strain.
 1021 Trypanosoma cruzi. Ruptured HeLa cell infected with Peru strain. Trypanosoma cruzi. Ruptured HeLa cell infected with Peru strain.
 1022 Trypanosoma cruzi. Peru strain forms emerging from infected HeLa cells. Trypanosoma cruzi. Peru strain forms emerging from infected HeLa cells.
 1023 Trypanosoma cruzi. Peru strain forms emerging from infected HeLa cells. Trypanosoma cruzi. Peru strain forms emerging from infected HeLa cells.
 1024 Trypanosoma cruzi. Peru strain epimastigote dividing in supernatant of infected HeLa cell culture. Trypanosoma cruzi. Peru strain epimastigote dividing in supernatant of infected HeLa cell culture.
 1025 Trypanosoma cruzi. Long slender form in supernatant of infected HeLa cell culture. Peru strain. Trypanosoma cruzi. Long slender form in supernatant of infected HeLa cell culture. Peru strain.
 1026 Taenia solium. Low and high views of cysticercus removed from buccal mucosa of patient. Taenia solium. Low and high views of cysticercus removed from buccal mucosa of patient.
 1027 Taenia solium. Low and high views of cysticercus removed from buccal mucosa of patient. Taenia solium. Low and high views of cysticercus removed from buccal mucosa of patient.
 1028 Wuchereria bancrofti. Infected larvae emerging from the mouth parts o a mosquito. Wuchereria bancrofti. Infected larvae emerging from the mouth parts o a mosquito.
 1029 Wuchereria bancrofti. Infected larvae emerging from the mouth parts o a mosquito. Wuchereria bancrofti. Infected larvae emerging from the mouth parts o a mosquito.
 1030 Hymenolepis nana. Cysticercoids in villi of a mouse. Hymenolepis nana. Cysticercoids in villi of a mouse.
 1031 Hymenolepis nana. Cysticercoids in villi of a mouse. Hymenolepis nana. Cysticercoids in villi of a mouse.
 1032 Hymenolepis nana. Cysticercoids in villi of a mouse. Hymenolepis nana. Cysticercoids in villi of a mouse.
 1033 Echinococcus granulosus. Pig liver studded with hydatids. Echinococcus granulosus. Pig liver studded with hydatids.
 1034 Toxoplasma gondii. Tachyzoites, free and in macrophages from peritoneal fluid of mouse. Phase, unstained. Toxoplasma gondii. Tachyzoites, free and in macrophages from peritoneal fluid of mouse. Phase, unstained.
 1035 Toxoplasma gondii. Two groups in chorion, one in the decidua of a human placenta. H & E stain. Toxoplasma gondii. Two groups in chorion, one in the decidua of a human placenta. H & E stain.
 1036 Toxoplasma gondii. Cyst in human brain. Wilder's silver impregnation. Toxoplasma gondii. Cyst in human brain. Wilder's silver impregnation.
 1037 Toxoplasma gondii. Five cysts in brain squash of mouse. Unstained. Toxoplasma gondii. Five cysts in brain squash of mouse. Unstained.
 1038 Toxoplasma gondii. Schizonts, gametocytes in ileum of kitten. Giemsa. Toxoplasma gondii. Schizonts, gametocytes in ileum of kitten. Giemsa.
 1039 Toxoplasma gondii. Schizonts in ileum of kitten. Giemsa. Toxoplasma gondii. Schizonts in ileum of kitten. Giemsa.
 1040 Toxoplasma gondii. Gametocytes and schizonts. Iron hematoxylin and Giemsa. Toxoplasma gondii. Gametocytes and schizonts. Iron hematoxylin and Giemsa.
 1041 Toxoplasma gondii. Oocysts. Toxoplasma gondii. Oocysts.
 1042 Toxoplasma gondii. Oocysts, flattened to show sporozoites. Toxoplasma gondii. Oocysts, flattened to show sporozoites.
 1043 Toxoplasma gondii. oocysts, activated and excysting with free sporozoite. Toxoplasma gondii. oocysts, activated and excysting with free sporozoite.
 1044 Toxoplasma gondii. Encephalitis with hydrocephalus. Ventriculogram shows marked dilation of ventricles. Toxoplasma gondii. Encephalitis with hydrocephalus. Ventriculogram shows marked dilation of ventricles.
 1045 Toxoplasma gondii. Encephalitis with necrosis around lateral and third ventricles. Toxoplasma gondii. Encephalitis with necrosis around lateral and third ventricles.
 1046 Toxoplasma gondii. Encephalitis. Necrosis surrounds the lateral ventricle except where the choroid plexus presents. This is a typical lesion in toxoplasmosis of the newborn. Toxoplasma gondii. Encephalitis. Necrosis surrounds the lateral ventricle except where the choroid plexus presents. This is a typical lesion in toxoplasmosis of the newborn.
 1047 Toxoplasma gondii. Encephalitis showing fourth ventricle not surrounding by necrosis. Instead, microglial nodules and watery inflammatory reactions accompany ulcerations in the ependyma. The foramina of Luschka and Magendie were open. Toxoplasma gondii. Encephalitis showing fourth ventricle not surrounding by necrosis. Instead, microglial nodules and watery inflammatory reactions accompany ulcerations in the ependyma. The foramina of Luschka and Magendie were open.
 1048 Toxoplasma gondii. Encephalitis. Pons with necrosis around aqueduct which is obstructed leading to periventricular necrosis in the ventricular system anterior to it. Toxoplasma gondii. Encephalitis. Pons with necrosis around aqueduct which is obstructed leading to periventricular necrosis in the ventricular system anterior to it.
 1049 Toxoplasma gondii. Toxoplasmic encephalitis showing transition of ependymal ulceration to full-blown periventricular necrosis. Toxoplasma gondii. Toxoplasmic encephalitis showing transition of ependymal ulceration to full-blown periventricular necrosis.
 1050 Toxoplasma gondii. Toxoplasmic encephalitis, cross-section of brain showing periventricular necrosis and hemorrhage in the subependymal white matter, which is undergoing liquefaction. Toxoplasma gondii. Toxoplasmic encephalitis, cross-section of brain showing periventricular necrosis and hemorrhage in the subependymal white matter, which is undergoing liquefaction.
 1051 Toxoplasma gondii. Toxoplasmic retinochoroiditis, left eye, approximately to days duration. Toxoplasma gondii. Toxoplasmic retinochoroiditis, left eye, approximately to days duration.
 1052 Toxoplasma gondii. Toxoplasmic retinochoroiditis, healed, 4 years later. Toxoplasma gondii. Toxoplasmic retinochoroiditis, healed, 4 years later.
 1053 Toxoplasma gondii. Toxoplasmic retinochoroiditis with Toxoplasma cyst. Presumably this lesion resulted from cyst rupture. Toxoplasma gondii. Toxoplasmic retinochoroiditis with Toxoplasma cyst. Presumably this lesion resulted from cyst rupture.
 1054 Toxoplasma gondii. Toxoplasmic retinochoroiditis withcyst in retina. PASH. Toxoplasma gondii. Toxoplasmic retinochoroiditis withcyst in retina. PASH.
 1055 Toxoplasma gondii Toxoplasmic retinochoroiditis showing close up of granulomas in choroid. Organisms were present in retina. Same eye as 1056. Toxoplasma gondii Toxoplasmic retinochoroiditis showing close up of granulomas in choroid. Organisms were present in retina. Same eye as 1056.
 1056 Toxoplasma gondii. Toxoplasmic retinochoroiditis is associated with tachyzoites. Granulomatous reaction is present in choroid. Toxoplasma gondii. Toxoplasmic retinochoroiditis is associated with tachyzoites. Granulomatous reaction is present in choroid.
 1057 Toxoplasma gondii. Toxoplasmic retinochoroiditis with Toxoplasma groups in center. H & E stain. Toxoplasma gondii. Toxoplasmic retinochoroiditis with Toxoplasma groups in center. H & E stain.
 1058 Toxoplasma gondii. Toxoplasma iymphadenitis with lymphoreticular hyperplasia. H & E stain. Toxoplasma gondii. Toxoplasma iymphadenitis with lymphoreticular hyperplasia. H & E stain.
 1059 Toxoplasma gondii. Toxoplasma lymphadenitis with lymphoreticular hyperplasia. H & E stain. Toxoplasma gondii. Toxoplasma lymphadenitis with lymphoreticular hyperplasia. H & E stain.
 1060 Besnoitia jellisoni. Cysts giving rise to retinochoroiditis in a hamster. H & E stain. Besnoitia jellisoni. Cysts giving rise to retinochoroiditis in a hamster. H & E stain.
 1061 Besnoitia jellisoni. Detail of retinitis associated with cyst rupture. H & E stain. Besnoitia jellisoni. Detail of retinitis associated with cyst rupture. H & E stain.
 1062 Besnoitia jellisoni. Cyst rupture and retinochoroiditis in hamster. H& E stain. Besnoitia jellisoni. Cyst rupture and retinochoroiditis in hamster. H& E stain.
 1063 Entamoeba histolytica. Cysts stained in iodine. Recovered from W. V. U. medical student who had visited and worked in Turkey. Entamoeba histolytica. Cysts stained in iodine. Recovered from W. V. U. medical student who had visited and worked in Turkey.
 1064 Entamoeba histolytica. Cysts stained in iodine. Recovered from W. V. U. medical student who had visited and worked in Turkey. Entamoeba histolytica. Cysts stained in iodine. Recovered from W. V. U. medical student who had visited and worked in Turkey.
 1065 Entamoeba histolytica. Cysts stained in iodine. Recovered from W. V. U. medical student who had visited and worked in Turkey. Entamoeba histolytica. Cysts stained in iodine. Recovered from W. V. U. medical student who had visited and worked in Turkey.
 1066 Paragonimus westermani. Egg, iodine stained, in stool. Paragonimus westermani. Egg, iodine stained, in stool.
 1067 Diphyllobothrium latum. Two eggs in stool with operculum opened. Diphyllobothrium latum. Two eggs in stool with operculum opened.
 1068 Taenia. Egg in stool. Iodine stained. Taenia. Egg in stool. Iodine stained.
 1069 Hymenolepis nana. Egg in stool. Iodine stained. Hymenolepis nana. Egg in stool. Iodine stained.
 1070 Strongyloides stercoralis Rhabditiform larva in stool Strongyloides stercoralis Rhabditiform larva in stool
 1071 Rhipicephalus sanguineus. Mouth parts. Rhipicephalus sanguineus. Mouth parts.
 1072 Rhipicephalus sanguineus. Mouth parts. Rhipicephalus sanguineus. Mouth parts.
 1073 Amblyomma americanum. Mouth parts. Amblyomma americanum. Mouth parts.
 1074 Dermacentor variabilis. Mouth parts. Dermacentor variabilis. Mouth parts.
 1075 Dermatobia hominis. A W. V. U. medical student returning from a summer visit to Costa Rica had this skin lesion. Dermatobia hominis. A W. V. U. medical student returning from a summer visit to Costa Rica had this skin lesion.
 1076 Dermatobia hominis. Removal of fly larva. Dermatobia hominis. Removal of fly larva.
 1077 Dermatobiahominis Fly larva after fixation in cold formalin. Dermatobiahominis Fly larva after fixation in cold formalin.
 1078 Toxoplasma gondii. Cyst in uninflamed mouse brain. Toxoplasma gondii. Cyst in uninflamed mouse brain.
 1079 Toxoplasma gondii. HeLa cell culture (monolayer). Toxoplasma gondii. HeLa cell culture (monolayer).
 1080 Toxoplasma gondii In a single HeLa cell. Toxoplasma gondii In a single HeLa cell.
 1081 Toxoplasma gondii Plaque formation in HeLa cells injected with Toxoplasma cyst. Toxoplasma gondii Plaque formation in HeLa cells injected with Toxoplasma cyst.
 1082 Toxoplasma gondii. Zonal granuloma in retina. Toxoplasma gondii. Zonal granuloma in retina.
 1083 Toxoplasma gondii. Rabbit retina with newly formed cyst. Toxoplasma gondii. Rabbit retina with newly formed cyst.
 1084 Toxoplasma gondii. Demonstration of Toxoplasma in retina by fluorescently stained antibody. Toxoplasma gondii. Demonstration of Toxoplasma in retina by fluorescently stained antibody.
 1085 Toxoplasma go ndii. Retinal cysts in patient with positive dye test. Toxoplasma go ndii. Retinal cysts in patient with positive dye test.
 1086 Toxoplasma gondii Acute retinal granuloma. Toxoplasma gondii Acute retinal granuloma.
 1087 Toxoplasma gondii Old and new lesions of retinochoroiditi s. Toxoplasma gondii Old and new lesions of retinochoroiditi s.
 1088 Toxoplasma gondii Healed retinal toxoplasmic retin iti s. Toxoplasma gondii Healed retinal toxoplasmic retin iti s.
 1089 Toxoplasma gondii Scar of congenital toxoplasmic retinitis. Toxoplasma gondii Scar of congenital toxoplasmic retinitis.
 1090 Toxoplasma gondii Juxtapapillary retinochoroiditis. Toxoplasma gondii Juxtapapillary retinochoroiditis.
 1091 Entamoeba gingivalis Trophozoite. Iron hematoxylin stain. Entamoeba gingivalis Trophozoite. Iron hematoxylin stain.
 1092 Trypanosoma cruzi. Romana's sign i n Chagas' disease. Trypanosoma cruzi. Romana's sign i n Chagas' disease.
 1093 Trypanosoma cruzi Thin smear of human blood containing a flagellated parasite. Trypanosoma cruzi Thin smear of human blood containing a flagellated parasite.
 1094 Trypanosoma cruzi. Thick smear of human blood containing a parasite. Trypanosoma cruzi. Thick smear of human blood containing a parasite.
 1095 Trypanosoma cruzi Heart showing typical pale, wet, flabby, swollen appearance due to myocarditis. Trypanosoma cruzi Heart showing typical pale, wet, flabby, swollen appearance due to myocarditis.
 1096 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1097 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1098 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1099 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1100 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1101 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1102 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1103 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1104 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1105 Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle. Trypanosoma cruzi. Multiple specimens showing aneurysmal dilatation and thinning of the apical myocardium, plus marked concentric muscular hypertrophy. In 1104 and 1105, light is transmitted through the thinned muscle.
 1106 Trypanosoma cruzi. Edematous brain showing narrowed sulci and flattened gyri, more pronounced on the right. Trypanosoma cruzi. Edematous brain showing narrowed sulci and flattened gyri, more pronounced on the right.
 1107 Trypanosoma cruzi Section of myocardium showing numerous parasites, edema, and inflammatory infiltrate. Trypanosoma cruzi Section of myocardium showing numerous parasites, edema, and inflammatory infiltrate.
 1108 Trypanosoma cruzi Section of myocardium showing numerous parasites, edema, and inflammatory infiltrate. Trypanosoma cruzi Section of myocardium showing numerous parasites, edema, and inflammatory infiltrate.
 1109 Trypanosoma cruzi Section of myocardium showing numerous parasites, edema, and inflammatory infiltrate. Trypanosoma cruzi Section of myocardium showing numerous parasites, edema, and inflammatory infiltrate.
 1110 Trypanosoma cruzi Section of myocardium showing numerous parasites, edema, and inflammatory infiltrate. Trypanosoma cruzi Section of myocardium showing numerous parasites, edema, and inflammatory infiltrate.
 1111 Trypanosoma cruzi. Cardiac muscle showing parasites, inflammatory response, loss of myocardium fibers and fibrous replacement. Trypanosoma cruzi. Cardiac muscle showing parasites, inflammatory response, loss of myocardium fibers and fibrous replacement.
 1112 Trypanosoma cruzi. Cardiac muscle showing parasites, inflammatory response, loss of myocardium fibers and fibrous replacement. Trypanosoma cruzi. Cardiac muscle showing parasites, inflammatory response, loss of myocardium fibers and fibrous replacement.
 1113 Trypanosoma cruzi. Cardiac muscle showing parasites, inflammatory response, loss of myocardium fibers and fibrous replacement. Trypanosoma cruzi. Cardiac muscle showing parasites, inflammatory response, loss of myocardium fibers and fibrous replacement.
 1114 Trypanosoma cruzi. Sequence shows an empty cage (1114) within which are placed uninfected reduviid bugs for xenodiagnosis. This is attached to the forearm with tape (1115). The bugs are permitted to bite the patient, are removed (1116), maintained for a while, then sacrificed. Proctodeum is then dissected for parasites. Trypanosoma cruzi. Sequence shows an empty cage (1114) within which are placed uninfected reduviid bugs for xenodiagnosis. This is attached to the forearm with tape (1115). The bugs are permitted to bite the patient, are removed (1116), maintained for a while, then sacrificed. Proctodeum is then dissected for parasites.
 1115 Trypanosoma cruzi. Sequence shows an empty cage (1114) within which are placed uninfected reduviid bugs for xenodiagnosis. This is attached to the forearm with tape (1115). The bugs are permitted to bite the patient, are removed (1116), maintained for a while, then sacrificed. Proctodeum is then dissected for parasites. Trypanosoma cruzi. Sequence shows an empty cage (1114) within which are placed uninfected reduviid bugs for xenodiagnosis. This is attached to the forearm with tape (1115). The bugs are permitted to bite the patient, are removed (1116), maintained for a while, then sacrificed. Proctodeum is then dissected for parasites.
 1116 Trypanosoma cruzi. Sequence shows an empty cage (1114) within which are placed uninfected reduviid bugs for xenodiagnosis. This is attached to the forearm with tape (1115). The bugs are permitted to bite the patient, are removed (1116), maintained for a while, then sacrificed. Proctodeum is then dissected for parasites. Trypanosoma cruzi. Sequence shows an empty cage (1114) within which are placed uninfected reduviid bugs for xenodiagnosis. This is attached to the forearm with tape (1115). The bugs are permitted to bite the patient, are removed (1116), maintained for a while, then sacrificed. Proctodeum is then dissected for parasites.
 1117 Trypanosoma cruzi. Skin reaction to reduviid bug's bite. Trypanosoma cruzi. Skin reaction to reduviid bug's bite.
 1118 Trypanosoma rangeli. Thin smear of human blood. Trypanosoma rangeli. Thin smear of human blood.
 1119 Balantidium coli Costa Rica. This slide shows invasion of colon wall with associated hemorrhage. Red blood cells appear red with this Mallory trichrome stain. Balantidium coli Costa Rica. This slide shows invasion of colon wall with associated hemorrhage. Red blood cells appear red with this Mallory trichrome stain.
 1120 Balantidium coli Two slides of necrotic gangrenous colon showing trophozoites in a venule. One slide is stained with H. and E., the other with Mallory's trichrome technique. Balantidium coli Two slides of necrotic gangrenous colon showing trophozoites in a venule. One slide is stained with H. and E., the other with Mallory's trichrome technique.
 1121 Balantidium coli Two slides of necrotic gangrenous colon showing trophozoites in a venule. One slide is stained with H. and E., the other with Mallory's trichrome technique. Balantidium coli Two slides of necrotic gangrenous colon showing trophozoites in a venule. One slide is stained with H. and E., the other with Mallory's trichrome technique.
 1122 Plasmodium falciparum. Heavily pigmented brain showing multiple punctate hemorrhages in the septum pellucidum. Plasmodium falciparum. Heavily pigmented brain showing multiple punctate hemorrhages in the septum pellucidum.
 1123 Plasmodium falciparum. Enlarged, heavy pigmented liver. Plasmodium falciparum. Enlarged, heavy pigmented liver.
 1124 Pneumocystis carinii. This slide shows eight parasites in a single cell from a lung touch preparation demonstrating the intracellular. character of the parasite. Pneumocystis carinii. This slide shows eight parasites in a single cell from a lung touch preparation demonstrating the intracellular. character of the parasite.
 1125 Pneumocystis carinii. Pneumonia. The characteristic foamy alveolar exudate is well seen. Pneumocystis carinii. Pneumonia. The characteristic foamy alveolar exudate is well seen.
 1126 Pneumocystis carinii. Pneumonia. The characteristic foamy alveolar exudate is well seen. Pneumocystis carinii. Pneumonia. The characteristic foamy alveolar exudate is well seen.
 1127 Toxoplasma gondii. Congenital toxoplasmosis with chorioretinitis and hydrocephaly. Toxoplasma gondii. Congenital toxoplasmosis with chorioretinitis and hydrocephaly.
 1128 Toxoplasma gondii. Hydrocephalus in an infant from Illinois. Toxoplasma gondii. Hydrocephalus in an infant from Illinois.
 1129 Toxoplasma gondii. Hydrocephalus in an infant from Illinois. Toxoplasma gondii. Hydrocephalus in an infant from Illinois.
 1130 Toxoplasma gondii. Hydrocephalus in an infant from Illinois. Toxoplasma gondii. Hydrocephalus in an infant from Illinois.
 1131 Toxoplasma gondii. Hydrocephalus in an infant from Illinois. Toxoplasma gondii. Hydrocephalus in an infant from Illinois.
 1132 Toxoplasma gondii. Hydrocephalus in an infant from Illinois. Toxoplasma gondii. Hydrocephalus in an infant from Illinois.
 1133 Onchocerca volvulus. Chronic skin changes in leg. Onchocerca volvulus. Chronic skin changes in leg.
 1134 Taenia crassiceps. Retinal photographs showing budding cysticercus in situ. Taenia crassiceps. Retinal photographs showing budding cysticercus in situ.
 1135 Taenia crassiceps. Cysticercus after surgical removal from eye. Taenia crassiceps. Cysticercus after surgical removal from eye.
 1136 Taenia crassiceps Hooks from same parasite. Taenia crassiceps Hooks from same parasite.
 1137 Taenia crassiceps Hooks from same parasite. Taenia crassiceps Hooks from same parasite.
 1138 Taenia crassiceps. Diagrammatic depiction of how cysticercus was removed from the eye. Taenia crassiceps. Diagrammatic depiction of how cysticercus was removed from the eye.
 1139 Taenia crassiceps Diagrammatic depiction of removal of daughter buds which dropped off in vitreous plus transcleral freezing of buds left within plans of retina. Taenia crassiceps Diagrammatic depiction of removal of daughter buds which dropped off in vitreous plus transcleral freezing of buds left within plans of retina.
 1140 Sparganum. Low power view of sparganum in subcutaneous tissue of human abdominal wall. Sparganum. Low power view of sparganum in subcutaneous tissue of human abdominal wall.
 1141 Sparganum. Same case, higher power shows the dense inflammatory response. Sparganum. Same case, higher power shows the dense inflammatory response.
 1142 Sparganum. Multiple cross section through the parasite at various magnifications are presented. Sparganum. Multiple cross section through the parasite at various magnifications are presented.
 1143 Sparganum. Multiple cross section through the parasite at various magnifications are presented. Sparganum. Multiple cross section through the parasite at various magnifications are presented.
 1144 Sparganum. Multiple cross section through the parasite at various magnifications are presented. Sparganum. Multiple cross section through the parasite at various magnifications are presented.
 1145 Sparganum. Multiple cross section through the parasite at various magnifications are presented. Sparganum. Multiple cross section through the parasite at various magnifications are presented.
 1146 Taenia solium. Cysticercus compressed by forehead tissues. Taenia solium. Cysticercus compressed by forehead tissues.
 1147 Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis. Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis.
 1148 Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis. Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis.
 1149 Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis. Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis.
 1150 Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis. Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis.
 1151 Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis. Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis.
 1152 Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis. Echinococcus granulosus. A 26-year old Italian male presented with jaundice due to biliary tree obstructions by daughter cysts of Echinococcus granulosus. Picture sequence of operative dissection.Removal of cysts, placement of multiple drains and creation of several anastomoses were required to ensure proper biliary drainage and to prevent bile peritonitis.
 1153 Schistosoma japonicum. Egg in brain. Schistosoma japonicum. Egg in brain.
 1154 Schistosoma japonicum. Egg in brain. Schistosoma japonicum. Egg in brain.
 1155 Schistosoma japonicum. Egg in brain. Schistosoma japonicum. Egg in brain.
 1156 Schistosoma japonicum. Egg in brain. Schistosoma japonicum. Egg in brain.
 1157 Schistosoma mansoni Egg in spinal cord. Schistosoma mansoni Egg in spinal cord.
 1158 Schistosoma mansoni. Acid-fast stain of egg in spinal cord. Schistosoma mansoni. Acid-fast stain of egg in spinal cord.
 1159 Schistosoma mansoni. Eggs in stomach wall. Schistosoma mansoni. Eggs in stomach wall.
 1160 Alaria In human eye. Relationship to optic disc and macula shown. Alaria In human eye. Relationship to optic disc and macula shown.
 1161 Alaria In human eye. Part of pigment track resulting from migration of trematode. Alaria In human eye. Part of pigment track resulting from migration of trematode.
 1162 Alaria In human eye. Part of pigment track resulting from migration of trematode. Alaria In human eye. Part of pigment track resulting from migration of trematode.
 1163 Alaria In human eye. Changes in shape of trematode during a two-second period. Worm was stimulated into activity by heat from the light of an ophthalmoscope. Alaria In human eye. Changes in shape of trematode during a two-second period. Worm was stimulated into activity by heat from the light of an ophthalmoscope.
 1164 Alaria. Mesocercaria in human retina. Alaria. Mesocercaria in human retina.
 1165 Alaria Atropic scar four weeks after treatment with argon laser. Alaria Atropic scar four weeks after treatment with argon laser.
 1166 Simulium. Fly feeding on man. Simulium. Fly feeding on man.
 1167 Dermatobiahominis Rare case of myiasis of the tongue Dermatobiahominis Rare case of myiasis of the tongue
 1168 Linguatula serrata. From the nasal fossa of a dog. Linguatula serrata. From the nasal fossa of a dog.
 1169 Linguatula serrata. From the nasal fossa of a dog. Linguatula serrata. From the nasal fossa of a dog.
 1170 Schistosoma mansoni Linear deposition of eggs along course of a vein. Schistosoma mansoni Linear deposition of eggs along course of a vein.
 1171 Ascaris lumbricoides Adults in gut. Ascaris lumbricoides Adults in gut.
 1172 Ascaris lumbricoides Adults in gut. Ascaris lumbricoides Adults in gut.
 1173 Ascaris lumbricoides Adults in gut. Ascaris lumbricoides Adults in gut.
 1174 Toxocara canis. Adults. Toxocara canis. Adults.
 1175 Schistosoma mansoni. Gross pathology. Lung slices showing pseudotubercles in fatal pulmonary schistosomiasis. Schistosoma mansoni. Gross pathology. Lung slices showing pseudotubercles in fatal pulmonary schistosomiasis.
 1176 Schistosoma mansoni. Gross pathology. Lung slices showing pseudotubercles in fatal pulmonary schistosomiasis. Schistosoma mansoni. Gross pathology. Lung slices showing pseudotubercles in fatal pulmonary schistosomiasis.
 1177 Schistosoma mansoni. Fragments of adult in necrotic focus within lung (fatal pulmonary schistosomiasis.) Schistosoma mansoni. Fragments of adult in necrotic focus within lung (fatal pulmonary schistosomiasis.)
 1178 Schistosoma mansoni. Necrotic pulmonary reaction. Schistosoma mansoni. Necrotic pulmonary reaction.
 1179  Schistosoma mansoni Fibrotic (1180) and necrotic pulmonary reactions to eggs. Schistosoma mansoni Fibrotic (1180) and necrotic pulmonary reactions to eggs.
 1180  Schistosoma mansoni Fibrotic (1180) and necrotic pulmonary reactions to eggs. Schistosoma mansoni Fibrotic (1180) and necrotic pulmonary reactions to eggs.
 1181 Schistosoma mansoni. H & E stained lung section from a fatal case of pulmonary schistosomiasis. Granuloma containing egg shell and giant cell is shown. Schistosoma mansoni. H & E stained lung section from a fatal case of pulmonary schistosomiasis. Granuloma containing egg shell and giant cell is shown.
 1182 Schistosoma mansoni H & E stained lung sections show a granuloma containing an egg. Multiple angiomatoid vessels are present. Fatal case of pulmonary fibrosis. Same case as slide 24. Schistosoma mansoni H & E stained lung sections show a granuloma containing an egg. Multiple angiomatoid vessels are present. Fatal case of pulmonary fibrosis. Same case as slide 24.
 1183 Schistosoma mansoni H & E stained lung sections show a granuloma containing an egg. Multiple angiomatoid vessels are present. Fatal case of pulmonary fibrosis. Same case as slide 24. Schistosoma mansoni H & E stained lung sections show a granuloma containing an egg. Multiple angiomatoid vessels are present. Fatal case of pulmonary fibrosis. Same case as slide 24.
 1184 Schistosoma mansoni. H& E stained section of pulmonary arteriole showing thickening of wall as result of increased pulmonary artery pressures.Same case as slide 24. Schistosoma mansoni. H& E stained section of pulmonary arteriole showing thickening of wall as result of increased pulmonary artery pressures.Same case as slide 24.
 1185 Schistosoma mansoni. Press prep showing adults in mesenteric veins. Schistosoma mansoni. Press prep showing adults in mesenteric veins.
 1186 Paragonimus pulmonalis Larval form from muscles of a wild boar. Paragonimus pulmonalis Larval form from muscles of a wild boar.
 1187 Schistosoma japonicum Section of rectum showing eggs and inflammatory infiltrate. Schistosoma japonicum Section of rectum showing eggs and inflammatory infiltrate.
 1188 Schistosoma japonicum Nest of eggs i n bowel wall. Schistosoma japonicum Nest of eggs i n bowel wall.
 1189 Schistosoma japonicum. Liver with necrosis. Schistosoma japonicum. Liver with necrosis.
 1190 Schistosoma japonicum. Liver with fibrotic nodule containing calcified egg. Schistosoma japonicum. Liver with fibrotic nodule containing calcified egg.
 1191 Schistosoma japonicum Section of lung from 16 year old Philippine female who died of schistosomal pneumonitis. Schistosoma japonicum Section of lung from 16 year old Philippine female who died of schistosomal pneumonitis.
 1192 Schistosoma japonicum Eggs in brain. Schistosoma japonicum Eggs in brain.
 1193 Schistosomatium douthitti. Positive skin test. Antigens used were Schistosoma japonicum, Schistosoma mansoni, control, Schistosomatium douthitti. Positive skin test. Antigens used were Schistosoma japonicum, Schistosoma mansoni, control,
 1194 Schistosoma haematobium Bladder biopsies from an Egyptian (1194-1195) and a tourist from Illinois (1196-1197). Schistosoma haematobium Bladder biopsies from an Egyptian (1194-1195) and a tourist from Illinois (1196-1197).
 1195 Schistosoma haematobium Bladder biopsies from an Egyptian (1194-1195) and a tourist from Illinois (1196-1197). Schistosoma haematobium Bladder biopsies from an Egyptian (1194-1195) and a tourist from Illinois (1196-1197).
 1196 Schistosoma haematobium Bladder biopsies from an Egyptian (1194-1195) and a tourist from Illinois (1196-1197). Schistosoma haematobium Bladder biopsies from an Egyptian (1194-1195) and a tourist from Illinois (1196-1197).
 1197 Schistosoma haematobium Bladder biopsies from an Egyptian (1194-1195) and a tourist from Illinois (1196-1197). Schistosoma haematobium Bladder biopsies from an Egyptian (1194-1195) and a tourist from Illinois (1196-1197).
 1198 Macracanthorhynchus hirudinaceus. Adult worms fastened to swine gut. Macracanthorhynchus hirudinaceus. Adult worms fastened to swine gut.
 1199 Trichinella spiralis. 8 hours after oral infection (L1). Trichinella spiralis. 8 hours after oral infection (L1).
 1200 Trichinella spiralis. 20 hours after oral infection (L2 or L3). Trichinella spiralis. 20 hours after oral infection (L2 or L3).
 1201 Trichinella spiralis. 27 hours after oral infection (female). Trichinella spiralis. 27 hours after oral infection (female).
 1202 Trichinella spiralis. 34 hours after oral infection (male). Trichinella spiralis. 34 hours after oral infection (male).
 1203 Trichinella spiralis. Adult female. Trichinella spiralis. Adult female.
 1204 Trichinella spiralis. Female adult. Nomarski optics. Trichinella spiralis. Female adult. Nomarski optics.
 1205 Trichinella spiralis. Male adult. Nomarski optics. Trichinella spiralis. Male adult. Nomarski optics.
 1206 Trichinella spiralis. Male adult. Nomarski optics. Trichinella spiralis. Male adult. Nomarski optics.
 1207 Trichinella spiralis Stichosome region of a muscle larva. Trichinella spiralis Stichosome region of a muscle larva.
 1208 Trichinella spiralis. Newborn larvae of Trichinella spiralis. Trichinella spiralis. Newborn larvae of Trichinella spiralis.
 1209 Trichinella spiralis. Newborn larva. Nomarski optics. Trichinella spiralis. Newborn larva. Nomarski optics.
 1210 Trichinella spiralis Nurse cell-parasite complex in an immunosuppressed host. Trichinella spiralis Nurse cell-parasite complex in an immunosuppressed host.
 1211 Trichinella spiralis Muscle larvae. In situ. Trichinella spiralis Muscle larvae. In situ.
 1212 Trichinella spiralis. Isolated nurse cells with larvae. Trichinella spiralis. Isolated nurse cells with larvae.
 1213 Trichinella spiralis. Nurse cell with larva. Nomarski optics. Trichinella spiralis. Nurse cell with larva. Nomarski optics.
 1214 Trichinella spiralis. Muscle larvae. Isolated by pepsin digestion. Trichinella spiralis. Muscle larvae. Isolated by pepsin digestion.
 1215 Trichinella spiralis. Muscle larvae. Isolated by pepsin digestion. Trichinella spiralis. Muscle larvae. Isolated by pepsin digestion.
 1216 Trichinella spiralis. Muscle larvae. Isolated by pepsin digestion. Trichinella spiralis. Muscle larvae. Isolated by pepsin digestion.
 1217 Trichinella spiralis. Hematoxyliln-eosin stained section of must injected 10 minutes earlier with newborn larvae. Trichinella spiralis. Hematoxyliln-eosin stained section of must injected 10 minutes earlier with newborn larvae.
 1218 Fascioloides magna. Infected bovine liver. Fascioloides magna. Infected bovine liver.
 1219 Angiostrongylus cantonensis Cross pathology of rat lungs from 50 day old infection with 30 larvae. Angiostrongylus cantonensis Cross pathology of rat lungs from 50 day old infection with 30 larvae.
 1220 Angiostrongylus cantonensis Microscopic views of rat lung reaction to nematodes. Angiostrongylus cantonensis Microscopic views of rat lung reaction to nematodes.
 1221 Angiostrongylus cantonensis Microscopic views of rat lung reaction to nematodes. Angiostrongylus cantonensis Microscopic views of rat lung reaction to nematodes.
 1222 Onchocerca volvulus. Rare case of a perforating nodule at the iliac crest of an adult man. Female Onchocerca volvulus are in the wound. From St. Paul River in Liberia. Onchocerca volvulus. Rare case of a perforating nodule at the iliac crest of an adult man. Female Onchocerca volvulus are in the wound. From St. Paul River in Liberia.
 1223 Onchocerca volvulus  Onchocercoma extirpated from a young man in Liberia. On one side of the nodule is a cavity with many living worms. On the other side a stronger host reaction is present with a few worms embedded in the soft tissue. (Diameter 5 cm) Liberia. Onchocerca volvulus Onchocercoma extirpated from a young man in Liberia. On one side of the nodule is a cavity with many living worms. On the other side a stronger host reaction is present with a few worms embedded in the soft tissue. (Diameter 5 cm) Liberia.
 1224 Onchocerca volvulus. Three male worms isolated from an onchocercoma. Liberia. Onchocerca volvulus. Three male worms isolated from an onchocercoma. Liberia.
 1225 Onchocerca volvulus. Female worms isolated from a single nodule in a boy of about thirteen from the Bougouriba-River in Upper Volta. Onchocerca volvulus. Female worms isolated from a single nodule in a boy of about thirteen from the Bougouriba-River in Upper Volta.
 1226 Onchocerca volvulus. Section of a male worm in a nodule. Liberia. Onchocerca volvulus. Section of a male worm in a nodule. Liberia.
 1227 Onchocerca volvulus. Hanging groin due to onchocerciasis in a blind man of about fifty-two. Bougouriba-River in Upper Volta. Onchocerca volvulus. Hanging groin due to onchocerciasis in a blind man of about fifty-two. Bougouriba-River in Upper Volta.
 1228 Onchocerca volvulus. Hanging groin due to onchocerciasis in a forty-five old woman of from the Bourgouriba-River in Upper Volta. Onchocerca volvulus. Hanging groin due to onchocerciasis in a forty-five old woman of from the Bourgouriba-River in Upper Volta.
 1229 Onchocerca volvulus. Fourteen year old boy with sowda (localized onchocerciasis) of the right leg. The leg is darker and swollen and there is a papular and vesicular dermatitis. Wadi Barakani in the south of the Yemen Arab Republic. Onchocerca volvulus. Fourteen year old boy with sowda (localized onchocerciasis) of the right leg. The leg is darker and swollen and there is a papular and vesicular dermatitis. Wadi Barakani in the south of the Yemen Arab Republic.
 1230 Onchocerca volvulus. Adult male with typical sowda of the right leg with many lesions due to scratching in response to severe itching. Wadi Al Barh, Yemen Arab Republic. Onchocerca volvulus. Adult male with typical sowda of the right leg with many lesions due to scratching in response to severe itching. Wadi Al Barh, Yemen Arab Republic.
 1231 Balantidium coli Bowel showing multiple ulcerations. Balantidium coli Bowel showing multiple ulcerations.
 1232 Balantidium coli Trophozoites. Note the contractile vacuole and the macronucleus. Balantidium coli Trophozoites. Note the contractile vacuole and the macronucleus.
 1233 Balantidium coli. Single trophozoite is present in the bowel wall. Note the cytostome. Balantidium coli. Single trophozoite is present in the bowel wall. Note the cytostome.
 1234 Capillaria hepatica. Eggs in the stool. Capillaria hepatica. Eggs in the stool.
 1235 Capillaria hepatica. Eggs in the stool. Capillaria hepatica. Eggs in the stool.
 1236 Toxocara. Larva present in the skin. Toxocara. Larva present in the skin.
 1237 Dirofilaria immitis. Multiple adult worms are present in the veins of a dog liver. Dirofilaria immitis. Multiple adult worms are present in the veins of a dog liver.
 1238 Trichuris. Cross section through an adult with many eggs. Trichuris. Cross section through an adult with many eggs.
 1239 Ancylostoma duodenale. Posterior end of the male shows copulatory bursa and its rays. Ancylostoma duodenale. Posterior end of the male shows copulatory bursa and its rays.
 1240 Paragonimus. Intermediate host, a crab. Paragonimus. Intermediate host, a crab.
 1241 Paragonimus. Eggs in the stool. Paragonimus. Eggs in the stool.
 1242 Paragonimus. Eggs in the stool. Paragonimus. Eggs in the stool.
 1243 Paragonimus. Adults in the lung. Paragonimus. Adults in the lung.
 1244 Paragonimus. Egg within a granuloma in a lung. Paragonimus. Egg within a granuloma in a lung.
 1245 Mite. Contaminant found in Pap smear slide. Mite. Contaminant found in Pap smear slide.
 1246 Mite. Contaminant found in Pap smear slide. Mite. Contaminant found in Pap smear slide.
 1247 Mite. Contaminant found in Pap smear slide. Mite. Contaminant found in Pap smear slide.
 1248 Armillifer armillatus. Nymphs in liver. Armillifer armillatus. Nymphs in liver.
 1249 Armillifer armillatus. Nymphs in pancreas. Armillifer armillatus. Nymphs in pancreas.
 1250 Armillifer armillatus. Nymphs in muscle. Armillifer armillatus. Nymphs in muscle.
 1251 Armillifer armillatus. Nymphs in mesentery. Armillifer armillatus. Nymphs in mesentery.
 1252 Armillifer armillatus. Calcifications associated with degenerating parasite in human mesentery. Ibadan, Nigeria. Armillifer armillatus. Calcifications associated with degenerating parasite in human mesentery. Ibadan, Nigeria.
 1253 Echinostoma. Adult parasite in the bowel wall. Echinostoma. Adult parasite in the bowel wall.
 1254 Heterophyes. Metacercaria in fish muscle. Heterophyes. Metacercaria in fish muscle.
 1255 Heterophyes. Adult in intestinal wall. Heterophyes. Adult in intestinal wall.
 1256 Heterophyes. Adult in intestinal wall. Heterophyes. Adult in intestinal wall.
 1257 Heterophyes. Adult in intestinal wall. Heterophyes. Adult in intestinal wall.
 1258 Schistosoma. Posterior acetabular gland ducts are seen near the oral sucker in a cercaria. Schistosoma. Posterior acetabular gland ducts are seen near the oral sucker in a cercaria.
 1259 Schistosoma. Cercaria penetrating skin of the abdomen and going deep. Schistosoma. Cercaria penetrating skin of the abdomen and going deep.
 1260 Schistosoma. Cercaria migrating under the stratum corneum a few minutes after entry. Schistosoma. Cercaria migrating under the stratum corneum a few minutes after entry.
 1261 Schistosoma. Most common migratory path is between the malpighian layer and the dermi s. Schistosoma. Most common migratory path is between the malpighian layer and the dermi s.
 1262 Schistosoma. Parasite in a caudal artery. Schistosoma. Parasite in a caudal artery.
 1263 Entamoeba histolytica Mature cyst. MIF stain. Entamoeba histolytica Mature cyst. MIF stain.
 1264 Entamoeba histolytica MIF stained trophozoites from a carrier. Entamoeba histolytica MIF stained trophozoites from a carrier.
 1265 Entamoeba histolytica MIF stained trophozoites from a carrier. Entamoeba histolytica MIF stained trophozoites from a carrier.
 1266 Entamoeba histolytica MIF stained trophozoites from a carrier. Entamoeba histolytica MIF stained trophozoites from a carrier.
 1267 Entamoeba histolytica. Section through intestinal ulcers. Entamoeba histolytica. Section through intestinal ulcers.
 1268 Entamoeba histolytica. Section through intestinal ulcers. Entamoeba histolytica. Section through intestinal ulcers.
 1269 Strongyloides stercoralis. Egg showing larva. Strongyloides stercoralis. Egg showing larva.
 1270 Schistosoma. Dermatitis. Schistosoma. Dermatitis.
 1271 Fasciolopsis buski Adult worm, whole mount. Fasciolopsis buski Adult worm, whole mount.
 1272 Metagonimus yokagowi. Adult worm, whole mount. Metagonimus yokagowi. Adult worm, whole mount.
 1273 Wuchereria bancrofti. Anterior and posterior views of a patient in Venezuela. Wuchereria bancrofti. Anterior and posterior views of a patient in Venezuela.
 1274 Wuchereria bancrofti. Anterior and posterior views of a patient in Venezuela. Wuchereria bancrofti. Anterior and posterior views of a patient in Venezuela.
 1275 Iodamoeba butschlii. Cyst. MIF stain. Iodamoeba butschlii. Cyst. MIF stain.
 1276 Trypanosoma cruzi. Human blood, thin smear. Trypanosoma cruzi. Human blood, thin smear.
 1277 Trypanosoma cruzi. Brain lesions. Trypanosoma cruzi. Brain lesions.
 1278 Trypanosoma cruzi. Brain lesions. Trypanosoma cruzi. Brain lesions.
 1279 Leishmania donovani. Liver. Leishmania donovani. Liver.
 1280 Schistosoma. Adults in lung. Schistosoma. Adults in lung.
 1281 Onchocerca volvulus. Nodule showing considerable host inflammatory response around the adult worms. Onchocerca volvulus. Nodule showing considerable host inflammatory response around the adult worms.
 1282 Schistosoma japonicum Philippine children showing hepatosplenomegaly and ascites. Schistosoma japonicum Philippine children showing hepatosplenomegaly and ascites.
 1283 Schistosoma japonicum Philippine children showing hepatosplenomegaly and ascites. Schistosoma japonicum Philippine children showing hepatosplenomegaly and ascites.
 1284 Toxocara Five year old male. Testicle showing multiple eosinophilic infiltrates at various magnifications. Toxocara Five year old male. Testicle showing multiple eosinophilic infiltrates at various magnifications.
 1285 Toxocara Five year old male. Testicle showing multiple eosinophilic infiltrates at various magnifications. Toxocara Five year old male. Testicle showing multiple eosinophilic infiltrates at various magnifications.
 1286 Toxocara Five year old male. Testicle showing multiple eosinophilic infiltrates at various magnifications. Toxocara Five year old male. Testicle showing multiple eosinophilic infiltrates at various magnifications.
 1287 Toxocara Migrating larva is present in a seminiferous tubule. Toxocara Migrating larva is present in a seminiferous tubule.
 1288 Toxocara Migrating larva is present in a seminiferous tubule. Toxocara Migrating larva is present in a seminiferous tubule.
 1289 Toxocara Migrating larvae demonstrated in the liver of an experimentally infected mouse. Toxocara Migrating larvae demonstrated in the liver of an experimentally infected mouse.
 1290 Toxocara Migrating larvae demonstrated in the liver of an experimentally infected mouse. Toxocara Migrating larvae demonstrated in the liver of an experimentally infected mouse.
 1291 Trichuris trichiura. Multiple infections. Four year old Puerto Rican patient with multiple parasites including S trongyloides stercoralis, hookworm, Ascaris lumbricoides and Trichuri s trichiura. He was small of stature (equivalent to a one and three quarter year old) and his weight was that of a two and a half year old. Trichuris trichiura. Multiple infections. Four year old Puerto Rican patient with multiple parasites including S trongyloides stercoralis, hookworm, Ascaris lumbricoides and Trichuri s trichiura. He was small of stature (equivalent to a one and three quarter year old) and his weight was that of a two and a half year old.
 1292 Trichuris trichiura. Multiple infections. Four year old Puerto Rican patient with multiple parasites including S trongyloides stercoralis, hookworm, Ascaris lumbricoides and Trichuri s trichiura. He was small of stature (equivalent to a one and three quarter year old) and his weight was that of a two and a half year old. Trichuris trichiura. Multiple infections. Four year old Puerto Rican patient with multiple parasites including S trongyloides stercoralis, hookworm, Ascaris lumbricoides and Trichuri s trichiura. He was small of stature (equivalent to a one and three quarter year old) and his weight was that of a two and a half year old.
 1293 Taenia. Multiple infections. This youngster from Leyte had Paragonimus westermani, Schistosoma japonicum, Ascaris lumbricoides, hookworm, Trichuris trichiura, Taenia, and Entamoeba histolytica. Taenia. Multiple infections. This youngster from Leyte had Paragonimus westermani, Schistosoma japonicum, Ascaris lumbricoides, hookworm, Trichuris trichiura, Taenia, and Entamoeba histolytica.
 1294 Paragonimus. Eggs in the brain of a female Korean immigrant. Paragonimus. Eggs in the brain of a female Korean immigrant.
 1295 Paragonimus. Eggs in the brain of a female Korean immigrant. Paragonimus. Eggs in the brain of a female Korean immigrant.
 1296 Paragonimus. Adult whole mount. Paragonimus. Adult whole mount.
 1297 Paragonimus. Region of oral sucker. Paragonimus. Region of oral sucker.
 1298 Paragonimus. Partial section through periphery of an adult. Paragonimus. Partial section through periphery of an adult.
 1299 Paragonimus. Cat lung containing adult trematodes. Paragonimus. Cat lung containing adult trematodes.
 1300 Paragonimus. Cat lung containing adult trematodes. Paragonimus. Cat lung containing adult trematodes.
 1301 Paragonimus. Cat lung containing adult trematodes. Paragonimus. Cat lung containing adult trematodes.
 1302 Paragonimus. Endemic area. Paragonimus. Endemic area.
 1303 Paragonimus. Egg in stool. Paragonimus. Egg in stool.
 1304 Pa ragonimus. Intermediate host, the snail Brotia (Philippines). Pa ragonimus. Intermediate host, the snail Brotia (Philippines).
 1305 Paragonimus Cercaria in Brotia showing the styles. Paragonimus Cercaria in Brotia showing the styles.
 1306 Paragonimus Cercaria in Brotia showing the styles. Paragonimus Cercaria in Brotia showing the styles.
 1307 Paragonimus. Traps used to catch crabs, the intermediate host. Paragonimus. Traps used to catch crabs, the intermediate host.
 1308 Paragonimus Night soil collectors coming and going. Paragonimus Night soil collectors coming and going.
 1309 Paragonimus Night soil collectors coming and going. Paragonimus Night soil collectors coming and going.
 1310 Schistosoma. Miracidium. Schistosoma. Miracidium.
 1311 Schistosoma mansoni Cercaria twenty minutes after it began penetrating the skin. Schistosoma mansoni Cercaria twenty minutes after it began penetrating the skin.
 1312 Taenia solium. Scolex evaginated from a cysticercus. Taenia solium. Scolex evaginated from a cysticercus.
 1313 Sarcocystis. Carcasses of an infected cowbird (1313) and shoveler bird (1314, 1315). Sarcocystis. Carcasses of an infected cowbird (1313) and shoveler bird (1314, 1315).
 1314 Sarcocystis. Carcasses of an infected cowbird (1313) and shoveler bird (1314, 1315). Sarcocystis. Carcasses of an infected cowbird (1313) and shoveler bird (1314, 1315).
 1315 Sarcocystis. Carcasses of an infected cowbird (1313) and shoveler bird (1314, 1315). Sarcocystis. Carcasses of an infected cowbird (1313) and shoveler bird (1314, 1315).
 1316 Sarcocystis. Zoites from the muscle of a duck (stained, 1316 and biphase microscopy, 1317). Sarcocystis. Zoites from the muscle of a duck (stained, 1316 and biphase microscopy, 1317).
 1317 Sarcocystis. Zoites from the muscle of a duck (stained, 1316 and biphase microscopy, 1317). Sarcocystis. Zoites from the muscle of a duck (stained, 1316 and biphase microscopy, 1317).
 1318 Sarcocystis. Zoites in hamburger as seen by phase microscopy. Sarcocystis. Zoites in hamburger as seen by phase microscopy.
 1319 Sarcocystis. Zoites in hamburger as seen by phase microscopy. Sarcocystis. Zoites in hamburger as seen by phase microscopy.
 1320 Sarcocystis. Sporocysts in opossum small intestine. Sarcocystis. Sporocysts in opossum small intestine.
 1321 Sarcocystis. Sporulated oocysts in lamina propria and an opossum bowel. Sarcocystis. Sporulated oocysts in lamina propria and an opossum bowel.
 1322 Sarcoptes scabiei. Severe lesions of the hand. Sarcoptes scabiei. Severe lesions of the hand.
 1323 Sarcoptes scabiei. Severe lesions of the hand. Sarcoptes scabiei. Severe lesions of the hand.
 1324 Sarcoptes scabiei. Section through skin showing burrowing mite. Sarcoptes scabiei. Section through skin showing burrowing mite.
 1325 Onchocerca volvulus. Nodule with surrounding subcutaneous tissues. Onchocerca volvulus. Nodule with surrounding subcutaneous tissues.
 1326 Alaria americana Living mesocercaria removed from a human liver at autopsy. Alaria americana Living mesocercaria removed from a human liver at autopsy.
 1327 Alaria americana Autopsied human lung showing hemorrhagic pneumonia and the etiologic agent, a mesocercaria in the patient's lung. Alaria americana Autopsied human lung showing hemorrhagic pneumonia and the etiologic agent, a mesocercaria in the patient's lung.
 1328 Alaria americana Autopsied human lung showing hemorrhagic pneumonia and the etiologic agent, a mesocercaria in the patient's lung. Alaria americana Autopsied human lung showing hemorrhagic pneumonia and the etiologic agent, a mesocercaria in the patient's lung.
 1329 Alaria americana Autopsied human lung showing hemorrhagic pneumonia and the etiologic agent, a mesocercaria in the patient's lung. Alaria americana Autopsied human lung showing hemorrhagic pneumonia and the etiologic agent, a mesocercaria in the patient's lung.
 1330 Alaria americana Autopsied human lung showing hemorrhagic pneumonia and the etiologic agent, a mesocercaria in the patient's lung. Alaria americana Autopsied human lung showing hemorrhagic pneumonia and the etiologic agent, a mesocercaria in the patient's lung.
 1331 Alaria americana. Heart showing hemorrhage and mesocercaria. Alaria americana. Heart showing hemorrhage and mesocercaria.
 1332 Alaria americana. Heart showing hemorrhage and mesocercaria. Alaria americana. Heart showing hemorrhage and mesocercaria.
 1333 Alaria americana. Mesocercaria in the liver.  Martin's scarlet blue stain Alaria americana. Mesocercaria in the liver. Martin's scarlet blue stain
 1334 Alaria americana Kidney showing petechial hemorrhages Alaria americana Kidney showing petechial hemorrhages
 1335 Alaria americana Section through human kidney showing mesocercaria and associated hemorrhage. Alaria americana Section through human kidney showing mesocercaria and associated hemorrhage.
 1336 Alaria americana. Mesocercaria in the patient's pancreas. Alaria americana. Mesocercaria in the patient's pancreas.
 1337 Alaria americana. Mesocercaria in the patient's pons. Alaria americana. Mesocercaria in the patient's pons.
 1338 Alaria americana. Mesocercaria in the patient's spleen. Alaria americana. Mesocercaria in the patient's spleen.
 1339 Alaria americana. Mesocercaria in the patient's lymph node. Alaria americana. Mesocercaria in the patient's lymph node.
 1340 Alaria americana. Section through the patient's testicle revealing hemorrhage caused by migrating mesocercaria. Alaria americana. Section through the patient's testicle revealing hemorrhage caused by migrating mesocercaria.
 1341 Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum. Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum.
 1342 Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum. Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum.
 1343 Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum. Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum.
 1344 Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum. Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum.
 1345 Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum. Anisakis. Multiple sections through anisakid nematodes and inflammatory infiltrate they induced in a human cecum.
 1346 Demodex folliculorum. Mite. Demodex folliculorum. Mite.
 1347 Demodex folliculorum. Dog mite in a human hair follicle. Demodex folliculorum. Dog mite in a human hair follicle.
 1348 Sigmodon hispidus. Intermediate host for Angiostrongylus costaricensis. Sigmodon hispidus. Intermediate host for Angiostrongylus costaricensis.
 1349 Vaginulis plebius Slug, intermediate host for Angiostrongylus costaricensis. Costa Rica. Vaginulis plebius Slug, intermediate host for Angiostrongylus costaricensis. Costa Rica.
 1350 Brugia Lymphangiogram in an experimentally infected cat demonstrates the thickening and dilation caused by the filaria.Lymphatics demonstrated with sky blue dye. Brugia Lymphangiogram in an experimentally infected cat demonstrates the thickening and dilation caused by the filaria.Lymphatics demonstrated with sky blue dye.
 1351 Multiple infections. Capillaria philippinensis. Capillaria and hookworm eggs are present. Photo courtesy E. K. Markell. Multiple infections. Capillaria philippinensis. Capillaria and hookworm eggs are present. Photo courtesy E. K. Markell.
 1352 Cochliomyia hominivorax. Nasal myiasis. Cochliomyia hominivorax. Nasal myiasis.
 1353 Cochliomyia hominivorax. Nasal myiasis. Cochliomyia hominivorax. Nasal myiasis.
 1354 Cochliomyia hominivorax. Larvae isolated from the patient. Cochliomyia hominivorax. Larvae isolated from the patient.
 1355 Diphyllobothrium latum. Egg in stool. Iodine stained. Diphyllobothrium latum. Egg in stool. Iodine stained.
 1356 Diphyllobothrium latum. Egg in stool. Iodine stained. Diphyllobothrium latum. Egg in stool. Iodine stained.
 1357 Entamoeba histolytica. Child with liver abscess at autopsy. Entamoeba histolytica. Child with liver abscess at autopsy.
 1358 Entamoeba histolytica Liver abscess draining golden pus after incision. Entamoeba histolytica Liver abscess draining golden pus after incision.
 1359 Entamoeba histolytica. Child with lung abscess. Drain in place. Entamoeba histolytica. Child with lung abscess. Drain in place.
 1360 Entamoeba histolytica. Contents drained from lung abscess. Entamoeba histolytica. Contents drained from lung abscess.
 1361 Iodamoeba butschlii. Iodine stained cyst in stool. Iodamoeba butschlii. Iodine stained cyst in stool.
 1362 Entamoeba histolytica. Open liver abscess. Entamoeba histolytica. Open liver abscess.
 1363 Simulium. One and one half hour old black fly bites. Simulium. One and one half hour old black fly bites.
 1364 Dientamoeba fragilis. Trophozoite in stool. Dientamoeba fragilis. Trophozoite in stool.
 1365 Fasciola hepatica Adults in bile duct (1365), Petri dish (1366), and on a glass plate (1367). Fasciola hepatica Adults in bile duct (1365), Petri dish (1366), and on a glass plate (1367).
 1366 Fasciola hepatica Adults in bile duct (1365), Petri dish (1366), and on a glass plate (1367). Fasciola hepatica Adults in bile duct (1365), Petri dish (1366), and on a glass plate (1367).
 1367 Fasciola hepatica Adults in bile duct (1365), Petri dish (1366), and on a glass plate (1367). Fasciola hepatica Adults in bile duct (1365), Petri dish (1366), and on a glass plate (1367).
 1368 Fasciola hepatica. Eggs in stool. Fasciola hepatica. Eggs in stool.
 1369 Fasciola hepatica. Bovine liver parasitized by immature flukes. Fasciola hepatica. Bovine liver parasitized by immature flukes.
 1370 Fasciola hepatica Chronic liver lesions. Fasciola hepatica Chronic liver lesions.
 1371 Fasciola hepatica Chronic liver lesions. Fasciola hepatica Chronic liver lesions.
 1372 Fasciola hepatica. Inflamed and calcified bile ducts. Fasciola hepatica. Inflamed and calcified bile ducts.
 1373 Fasciola hepatica Calcareous flakes in bovine bile ducts Fasciola hepatica Calcareous flakes in bovine bile ducts
 1374 Fasciola hepatica Calcareous flakes in bovine bile ducts Fasciola hepatica Calcareous flakes in bovine bile ducts
 1375 Fasciola hepatica. Calcareous flakes from bovine bile duct. Fasciola hepatica. Calcareous flakes from bovine bile duct.
 1376 Lymnea cubensis. Intermediate host for Fasciola hepatica Lymnea cubensis. Intermediate host for Fasciola hepatica
 1377 Lymnea cubensis. Intermediate host for Fasciola hepatica Lymnea cubensis. Intermediate host for Fasciola hepatica
 1378 Fasciola hepatica. Immature redia. Fasciola hepatica. Immature redia.
 1379 Fasciola hepatica. Mature redia containing cercariae. Fasciola hepatica. Mature redia containing cercariae.
 1380 Fasciola hepatica Pasture serving as habitat for Lymnea . Fasciola hepatica Pasture serving as habitat for Lymnea .
 1381 Fasciola hepatica Pasture serving as habitat for Lymnea . Fasciola hepatica Pasture serving as habitat for Lymnea .
 1382 Fasciola hepatica. Safe grazing. Sandy creek. Fasciola hepatica. Safe grazing. Sandy creek.
 1383 Fasciola hepatica. Muck pond. Safe grazing because soil is acid. Fasciola hepatica. Muck pond. Safe grazing because soil is acid.
 1384 Enterobius vermicularis. Disrupted adults trapped by scotch tape. A pin is superimposed to indicate worm size. Enterobius vermicularis. Disrupted adults trapped by scotch tape. A pin is superimposed to indicate worm size.
 1385 Trypanosoma cruzi. Positive skin test. Trypanosoma cruzi. Positive skin test.
 1386 Taenia solium. Philippine pig carrying approximately 150 cysticerci per pound. Taenia solium. Philippine pig carrying approximately 150 cysticerci per pound.
 1387 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1388 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1389 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1390 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1391 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1392 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1393 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1394 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1395 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1396 Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected. Echinococcus multilocularis. Gross and microscopic photos of human liver from Minnesota where about one half of the red foxes are infected.
 1397 Pneumocystis carinii. Gross lung specimen showing brick red colored pneumonia. Pneumocystis carinii. Gross lung specimen showing brick red colored pneumonia.
 1398 Wuchereria bancrofti. Enlargement of epitrochlear lymph node. Wuchereria bancrofti. Enlargement of epitrochlear lymph node.
 1399 Trichostrongylus and hookworm Eggs in stool. Iodine stained. Trichostrongylus and hookworm Eggs in stool. Iodine stained.
 1400 Gnathostoma. Lesion at wrist. Gnathostoma. Lesion at wrist.
 1401 Gnathostoma. Lesion at wrist. Gnathostoma. Lesion at wrist.
 1402 Fasciola hepatica. Normal sheep liver and one damaged by migrating larvae. Fasciola hepatica. Normal sheep liver and one damaged by migrating larvae.
 1403 Fasciola hepatica. Calf liver damaged by migrating larvae. Fasciola hepatica. Calf liver damaged by migrating larvae.
 1404 Fasciola hepatica. Dense snail population in well-water overflow. Fasciola hepatica. Dense snail population in well-water overflow.
 1405 Fasciola hepatica. Pasture border with Lymnea cubensis snails, Putnam County, Florida. Fasciola hepatica. Pasture border with Lymnea cubensis snails, Putnam County, Florida.
 1406 Fasciola hepatica. Cercaria. Fasciola hepatica. Cercaria.
 1407 Ascaris lumbricoides. Abdominal mass which contained adult ascarids (1407, 1408) and eggs (1409) was surgically removed from a patient. There was direct communication with the large bowel. Note cell division in the egg (1409). Ascaris lumbricoides. Abdominal mass which contained adult ascarids (1407, 1408) and eggs (1409) was surgically removed from a patient. There was direct communication with the large bowel. Note cell division in the egg (1409).
 1408 Ascaris lumbricoides. Abdominal mass which contained adult ascarids (1407, 1408) and eggs (1409) was surgically removed from a patient. There was direct communication with the large bowel. Note cell division in the egg (1409). Ascaris lumbricoides. Abdominal mass which contained adult ascarids (1407, 1408) and eggs (1409) was surgically removed from a patient. There was direct communication with the large bowel. Note cell division in the egg (1409).
 1409 Ascaris lumbricoides. Abdominal mass which contained adult ascarids (1407, 1408) and eggs (1409) was surgically removed from a patient. There was direct communication with the large bowel. Note cell division in the egg (1409). Ascaris lumbricoides. Abdominal mass which contained adult ascarids (1407, 1408) and eggs (1409) was surgically removed from a patient. There was direct communication with the large bowel. Note cell division in the egg (1409).
 1410 Enterobius vermicularis. Low and high power views of eggs in necrotic granulomatous pelvic lesions. The patient was a young female who suffered chronic dysmenorrhea, dyspareunia and lower abdominal discomfort. Silver methenamine stain. Enterobius vermicularis. Low and high power views of eggs in necrotic granulomatous pelvic lesions. The patient was a young female who suffered chronic dysmenorrhea, dyspareunia and lower abdominal discomfort. Silver methenamine stain.
 1411 Enterobius vermicularis. Low and high power views of eggs in necrotic granulomatous pelvic lesions. The patient was a young female who suffered chronic dysmenorrhea, dyspareunia and lower abdominal discomfort. Silver methenamine stain. Enterobius vermicularis. Low and high power views of eggs in necrotic granulomatous pelvic lesions. The patient was a young female who suffered chronic dysmenorrhea, dyspareunia and lower abdominal discomfort. Silver methenamine stain.
 1412 Mesocestoides. Scolex and neck from a 22 day old experimental infection in a hamster. Mesocestoides. Scolex and neck from a 22 day old experimental infection in a hamster.
 1413 Mesocestoides. Immature proglottids from the same infection. Mesocestoides. Immature proglottids from the same infection.
 1414 Mesocestoides. Maturing proglottids one of which shows a tandem duplication of the reproductive system. Mesocestoides. Maturing proglottids one of which shows a tandem duplication of the reproductive system.
 1415 Mesocestoides. Genital complex. Uterus full of eggs. Mesocestoides. Genital complex. Uterus full of eggs.
 1416 Mesocestoides. Genital complex. 'Gravid proglottid,' with the uterus emptied. Mesocestoides. Genital complex. 'Gravid proglottid,' with the uterus emptied.
 1417 Contracaecum, Anisakis, and Phoconema Drawing showing gut structures. Contracaecum, Anisakis, and Phoconema Drawing showing gut structures.
 1418 Anisakis In fish flesh. Anisakis In fish flesh.
 1419 Anisakis In fish flesh. Anisakis In fish flesh.
 1420 Anisakis In fish flesh. Anisakis In fish flesh.
 1421 Anisakis In fish flesh. Anisakis In fish flesh.
 1422 Anisakis. In cross section of fish flesh. Anisakis. In cross section of fish flesh.
 1423 Anisakis. Gastroscopic view of worm in stomach. Anisakis. Gastroscopic view of worm in stomach.
 1424 Anisakis. Same worm after removal through gastroscope. Anisakis. Same worm after removal through gastroscope.
 1425 Phoconema. Nematodes in fish flesh and viscera. Phoconema. Nematodes in fish flesh and viscera.
 1426 Phoconema. Nematodes in fish flesh and viscera. Phoconema. Nematodes in fish flesh and viscera.
 1427 Phoconema. Nematodes in fish flesh and viscera. Phoconema. Nematodes in fish flesh and viscera.
 1428 Enterobius vermicularis. Ovarian enterobiasis. Enterobius vermicularis. Ovarian enterobiasis.
 1429 Enterobius vermicularis. Ovarian enterobiasis. Enterobius vermicularis. Ovarian enterobiasis.
 1430 Enterobius vermicularis. Ovarian enterobiasis. Enterobius vermicularis. Ovarian enterobiasis.
 1431 Schistosoma mansoni. Schistosoma placentitis. An egg is present in the villi. Note disappearance of the trophoplastic epithelium. Schistosoma mansoni. Schistosoma placentitis. An egg is present in the villi. Note disappearance of the trophoplastic epithelium.
 1432 Schistosoma mansoni. Schistosoma placentitis. Intervillous space and villi showing eggs within granulomata. Schistosoma mansoni. Schistosoma placentitis. Intervillous space and villi showing eggs within granulomata.
 1433 Schistosoma mansoni. Adult worm within a decidual vessel. Schistosoma mansoni. Adult worm within a decidual vessel.
 1434 Schistosoma mansoni. Adult worm in the placental intervillous spaces. Schistosoma mansoni. Adult worm in the placental intervillous spaces.
 1435 Trypanosoma cruzi. A giant cell containing many amastigotes is present in the placental chorion. Trypanosoma cruzi. A giant cell containing many amastigotes is present in the placental chorion.
 1436 Sarcocystis. Cyst in human muscle. Biopsy specimen. Sarcocystis. Cyst in human muscle. Biopsy specimen.
 1437 Trypanosoma cruzi Granulomatous reaction in the placenta secondary to infection. Trypanosoma cruzi Granulomatous reaction in the placenta secondary to infection.
 1438 Sarcocystis. Canine intestine with gametes and oocyst. Sarcocystis. Canine intestine with gametes and oocyst.
 1439 Sarcocystis Sporocysts in fecal float from coyote. Sporocysts are excysting releasing sporozoites following incubation in C02 followed by treatment with bile and trypsin. Sarcocystis Sporocysts in fecal float from coyote. Sporocysts are excysting releasing sporozoites following incubation in C02 followed by treatment with bile and trypsin.
 1440 Sarcocystis bovicanis. (=Sarcocystis cruzi, = Sarcocystis fusiformis). Schizont i n endothelium of bovine kidney glomerulus. Sarcocystis bovicanis. (=Sarcocystis cruzi, = Sarcocystis fusiformis). Schizont i n endothelium of bovine kidney glomerulus.
 1441 Sarcocystis bovicanis. Merozoi to in leukocyte in bovine blood smear. Sarcocystis bovicanis. Merozoi to in leukocyte in bovine blood smear.
 1442 Sarcocystis bovicanis. Merozoite free in bovine blood smear. Sarcocystis bovicanis. Merozoite free in bovine blood smear.
 1443 Demodex folliculorum. Skin scraping. Demodex folliculorum. Skin scraping.
 1444 Cochliomyia horn inivorax. Myiasis. Immature larvae on boy's head.These were obtained after 'Albafaca infusion' (Ocimun basilicum) treatment. Cochliomyia horn inivorax. Myiasis. Immature larvae on boy's head.These were obtained after 'Albafaca infusion' (Ocimun basilicum) treatment.
 1445 Cochliomyia hominivorax The primary screw-worm is one of the main agents causing myiasis in Guatemala. Note the three parallel bands over the thorax and the very beautiful metallic blue green color. Cochliomyia hominivorax The primary screw-worm is one of the main agents causing myiasis in Guatemala. Note the three parallel bands over the thorax and the very beautiful metallic blue green color.
 1446 Entamoeba polecki. Cysts from patients in Venezuela. Entamoeba polecki. Cysts from patients in Venezuela.
 1447 Entamoeba polecki. Cysts from patients in Venezuela. Entamoeba polecki. Cysts from patients in Venezuela.
 1448 Echinococcus granulosus Cyst fluid with and without contaminating blood. Echinococcus granulosus Cyst fluid with and without contaminating blood.
 1449 Echinococcus granulosus. Lining of a daughter cyst showing multiple protoscolices. Echinococcus granulosus. Lining of a daughter cyst showing multiple protoscolices.
 1450 Echinococcus granulosus. Hydatid sand. Echinococcus granulosus. Hydatid sand.
 1451 Echinococcus granulosus Adult. Echinococcus granulosus Adult.
 1452 Multiceps. High power view of hooks. Multiceps. High power view of hooks.
 1453 Taenia solium. Gravid proglottid. Taenia solium. Gravid proglottid.
 1454 Sparganum Multiple sections through subcutaneous human tissue containing a sparganum and through the sparganum itself. Note the tremendous inflammatory reaction. Sparganum Multiple sections through subcutaneous human tissue containing a sparganum and through the sparganum itself. Note the tremendous inflammatory reaction.
 1455 Sparganum Multiple sections through subcutaneous human tissue containing a sparganum and through the sparganum itself. Note the tremendous inflammatory reaction. Sparganum Multiple sections through subcutaneous human tissue containing a sparganum and through the sparganum itself. Note the tremendous inflammatory reaction.
 1456 Sparganum Multiple sections through subcutaneous human tissue containing a sparganum and through the sparganum itself. Note the tremendous inflammatory reaction. Sparganum Multiple sections through subcutaneous human tissue containing a sparganum and through the sparganum itself. Note the tremendous inflammatory reaction.
 1457 Sparganum Multiple sections through subcutaneous human tissue containing a sparganum and through the sparganum itself. Note the tremendous inflammatory reaction. Sparganum Multiple sections through subcutaneous human tissue containing a sparganum and through the sparganum itself. Note the tremendous inflammatory reaction.
 1458 Schistosoma japonicum. Multiple sections through appendix. Note that the eggs are acid fast. (1461). Schistosoma japonicum. Multiple sections through appendix. Note that the eggs are acid fast. (1461).
 1459 Schistosoma japonicum. Multiple sections through appendix. Note that the eggs are acid fast. (1461). Schistosoma japonicum. Multiple sections through appendix. Note that the eggs are acid fast. (1461).
 1460 Schistosoma japonicum. Multiple sections through appendix. Note that the eggs are acid fast. (1461). Schistosoma japonicum. Multiple sections through appendix. Note that the eggs are acid fast. (1461).
 1461 Schistosoma japonicum. Multiple sections through appendix. Note that the eggs are acid fast. (1461). Schistosoma japonicum. Multiple sections through appendix. Note that the eggs are acid fast. (1461).
 1462 Paragon imus westermani. Seminal receptacle. Paragon imus westermani. Seminal receptacle.
 1463 Paragonimus pulmonalis. Seminal receptacle. Paragonimus pulmonalis. Seminal receptacle.
 1464 Fasciola hepatica. Egg showing miricidium. Fasciola hepatica. Egg showing miricidium.
 1465 Fasciola hepatica. Egg plus miricidia. Fasciola hepatica. Egg plus miricidia.
 1466 Fasciola hepatica. Metacercaria. Fasciola hepatica. Metacercaria.
 1467 Schistosoma mansoni. Egg with circumoval precipitate. Schistosoma mansoni. Egg with circumoval precipitate.
 1468 Schistosoma japonicum. Egg with circumoval precipitate. Schistosoma japonicum. Egg with circumoval precipitate.
 1469 Schistosoma haematobium. Egg with circumoval precipitate. Schistosoma haematobium. Egg with circumoval precipitate.
 1470 Schistosoma haematobium. Egg deposition in chimpanzee urinary bladder producing pol ypoid patches. Schistosoma haematobium. Egg deposition in chimpanzee urinary bladder producing pol ypoid patches.
 1471 Schistosoma haematobium. Folypoid patch at ureterovesical junction in an experimentally infected chimpanzee. Nails were placed in the ureteral orifices. Schistosoma haematobium. Folypoid patch at ureterovesical junction in an experimentally infected chimpanzee. Nails were placed in the ureteral orifices.
 1472 Schistosoma haematobium Sandy patches in ureteral mucosa of a chimpanzee. Note inflamed bladder mucosa. Schistosoma haematobium Sandy patches in ureteral mucosa of a chimpanzee. Note inflamed bladder mucosa.
 1473 Schistosoma haematobium. Dilated chimpanzee ureter with circumferential sandy mucosa. Schistosoma haematobium. Dilated chimpanzee ureter with circumferential sandy mucosa.
 1474 Schistosoma japonicum Clustered, patchy, early egg lesions in colonic mucosa of a chimpanzee. Schistosoma japonicum Clustered, patchy, early egg lesions in colonic mucosa of a chimpanzee.
 1475 Schistosoma japonicum. Early pipe stem fibrosis and granulomata in experimentally infected chimpanzee. Schistosoma japonicum. Early pipe stem fibrosis and granulomata in experimentally infected chimpanzee.
 1476 Schistosoma japonicum Various magnifications of advanced pipe stem fibrosis in an experimentally- infected chimpanzee. Schistosoma japonicum Various magnifications of advanced pipe stem fibrosis in an experimentally- infected chimpanzee.
 1477 Schistosoma japonicum Various magnifications of advanced pipe stem fibrosis in an experimentally- infected chimpanzee. Schistosoma japonicum Various magnifications of advanced pipe stem fibrosis in an experimentally- infected chimpanzee.
 1478 Schistosoma japonicum Various magnifications of advanced pipe stem fibrosis in an experimentally- infected chimpanzee. Schistosoma japonicum Various magnifications of advanced pipe stem fibrosis in an experimentally- infected chimpanzee.
 1479 Schistosoma japonicum. Nephropathy in chimpanzee with pipe stem fibrosis. Note mesangial proliferation. Schistosoma japonicum. Nephropathy in chimpanzee with pipe stem fibrosis. Note mesangial proliferation.
 1480 Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case. Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case.
 1481 Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case. Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case.
 1482 Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case. Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case.
 1483 Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case. Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case.
 1484 Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case. Babesia microti Multiple blood smears from experimental animals infected with material derived from a human case.
 1485 Babesia microti. Thick smear. Babesia microti. Thick smear.
 1486 Siderocytes incorrectly diagnosed as Babesia until proven otherwise with specific stain for iron. (Prussian blue). Siderocytes incorrectly diagnosed as Babesia until proven otherwise with specific stain for iron. (Prussian blue).
 1487 Siderocytes incorrectly diagnosed as Babesia until proven otherwise with specific stain for iron. (Prussian blue). Siderocytes incorrectly diagnosed as Babesia until proven otherwise with specific stain for iron. (Prussian blue).
 1488 Siderocytes incorrectly diagnosed as Babesia until proven otherwise with specific stain for iron. (Prussian blue). Siderocytes incorrectly diagnosed as Babesia until proven otherwise with specific stain for iron. (Prussian blue).
 1489 Acanthamoeba polyphagia Progressive keratitis in 59 year old male rancher. Slide 1489 dated 2-16-73, slide 1490 12-19-73, and slide 1491 dated 1-9-74. Acanthamoeba polyphagia Progressive keratitis in 59 year old male rancher. Slide 1489 dated 2-16-73, slide 1490 12-19-73, and slide 1491 dated 1-9-74.
 1490 Acanthamoeba polyphagia Progressive keratitis in 59 year old male rancher. Slide 1489 dated 2-16-73, slide 1490 12-19-73, and slide 1491 dated 1-9-74. Acanthamoeba polyphagia Progressive keratitis in 59 year old male rancher. Slide 1489 dated 2-16-73, slide 1490 12-19-73, and slide 1491 dated 1-9-74.
 1491 Acanthamoeba polyphagia Progressive keratitis in 59 year old male rancher. Slide 1489 dated 2-16-73, slide 1490 12-19-73, and slide 1491 dated 1-9-74. Acanthamoeba polyphagia Progressive keratitis in 59 year old male rancher. Slide 1489 dated 2-16-73, slide 1490 12-19-73, and slide 1491 dated 1-9-74.
 1492 Acanthamoeba polyphagia. Trophozoites (1492) and cysts (1493) from corneal scrapings of above case. Acanthamoeba polyphagia. Trophozoites (1492) and cysts (1493) from corneal scrapings of above case.
 1493 Acanthamoeba polyphagia. Trophozoites (1492) and cysts (1493) from corneal scrapings of above case. Acanthamoeba polyphagia. Trophozoites (1492) and cysts (1493) from corneal scrapings of above case.
 1494 Acanthamoeba 'Star' cysts from blood agar plate culture from human cornea. Acanthamoeba 'Star' cysts from blood agar plate culture from human cornea.
 1495 Acanthamoeba 'Star' cysts and a motile amoeba from blood agar plate culture made from human cornea. Acanthamoeba 'Star' cysts and a motile amoeba from blood agar plate culture made from human cornea.
 1496 Acanthamoeba Keratitis in the eye of a different patient. Acanthamoeba Keratitis in the eye of a different patient.
 1497 Acanthamoeba polyphagia. Photograph made with a scanning electron microscope. Acanthamoeba polyphagia. Photograph made with a scanning electron microscope.
 1498 Acanthamoeba Fatal case with uveitis and meningoencephalitis. Gross pathology (1498-1499) uveitis showing reaction (1500) and trophozoite (1501). Acanthamoeba Fatal case with uveitis and meningoencephalitis. Gross pathology (1498-1499) uveitis showing reaction (1500) and trophozoite (1501).
 1499 Acanthamoeba Fatal case with uveitis and meningoencephalitis. Gross pathology (1498-1499) uveitis showing reaction (1500) and trophozoite (1501). Acanthamoeba Fatal case with uveitis and meningoencephalitis. Gross pathology (1498-1499) uveitis showing reaction (1500) and trophozoite (1501).
 1500 Acanthamoeba Fatal case with uveitis and meningoencephalitis. Gross pathology (1498-1499) uveitis showing reaction (1500) and trophozoite (1501). Acanthamoeba Fatal case with uveitis and meningoencephalitis. Gross pathology (1498-1499) uveitis showing reaction (1500) and trophozoite (1501).
 1501 Acanthamoeba Fatal case with uveitis and meningoencephalitis. Gross pathology (1498-1499) uveitis showing reaction (1500) and trophozoite (1501). Acanthamoeba Fatal case with uveitis and meningoencephalitis. Gross pathology (1498-1499) uveitis showing reaction (1500) and trophozoite (1501).
 1502 Strongyloides stercoralis. Larva in human alveolus. Pneumonic infiltrate present Strongyloides stercoralis. Larva in human alveolus. Pneumonic infiltrate present
 1503 Metagonimus yokagowi. Adult, whole mount. Metagonimus yokagowi. Adult, whole mount.
 1504 Anisakis Cross section through worm in stomach wall. Anisakis Cross section through worm in stomach wall.
 1505 Fasciola gigantica. Egg. Fasciola gigantica. Egg.
 1506 Myiasis, ocular. Species of fly unknown. Myiasis, ocular. Species of fly unknown.
 1507 Polistes Paper wasps and nest. Polistes Paper wasps and nest.
 1508 Polistes. Severe edematous reaction 2-3 hours after sting. Polistes. Severe edematous reaction 2-3 hours after sting.
 1509 Megalopyge opercularis Puss caterpillar on a leaf. Megalopyge opercularis Puss caterpillar on a leaf.
 1510 Megalopyge opercularis. Evolution of dermatitis produced by venom introduced into human skin by hollow larval poisonous spines. Photo 1510, twenty-four hours after exposure, 1511, fortyeight hours after exposure and 1512, five days after exposure. Megalopyge opercularis. Evolution of dermatitis produced by venom introduced into human skin by hollow larval poisonous spines. Photo 1510, twenty-four hours after exposure, 1511, fortyeight hours after exposure and 1512, five days after exposure.
 1511 Megalopyge opercularis. Evolution of dermatitis produced by venom introduced into human skin by hollow larval poisonous spines. Photo 1510, twenty-four hours after exposure, 1511, fortyeight hours after exposure and 1512, five days after exposure. Megalopyge opercularis. Evolution of dermatitis produced by venom introduced into human skin by hollow larval poisonous spines. Photo 1510, twenty-four hours after exposure, 1511, fortyeight hours after exposure and 1512, five days after exposure.
 1512 Megalopyge opercularis. Evolution of dermatitis produced by venom introduced into human skin by hollow larval poisonous spines. Photo 1510, twenty-four hours after exposure, 1511, fortyeight hours after exposure and 1512, five days after exposure. Megalopyge opercularis. Evolution of dermatitis produced by venom introduced into human skin by hollow larval poisonous spines. Photo 1510, twenty-four hours after exposure, 1511, fortyeight hours after exposure and 1512, five days after exposure.
 1513 Megalopyge opercularis. Developmental stages. The larval stages of a small moth are often called puss caterpillars or tree asps. Clusters of venomous spines are hidden among the fine hair on the back. Severe local pain often follows contact with these --- ` caterpillars. Megalopyge opercularis. Developmental stages. The larval stages of a small moth are often called puss caterpillars or tree asps. Clusters of venomous spines are hidden among the fine hair on the back. Severe local pain often follows contact with these --- ` caterpillars.
 1514 Alaria oregonensis. Strigeid trematode from coyote in California. Alaria oregonensis. Strigeid trematode from coyote in California.
 1515 Taenia solium. Cysticercus in pig muscle. Taenia solium. Cysticercus in pig muscle.
 1516 Taenia serialis. Coenurus with multiple protoscolices. Taenia serialis. Coenurus with multiple protoscolices.
 1517 Echinococcus granulosus. Navajo woman butchering sheep. Echinococcus granulosus. Navajo woman butchering sheep.
 1518 Echinococcus granulosus. Discarded sheep at roadside. Echinococcus granulosus. Discarded sheep at roadside.
 1519 Echinococcus granulosus. Home of sheep in Central Sierra, Peru. Dog at the ready. Echinococcus granulosus. Home of sheep in Central Sierra, Peru. Dog at the ready.
 1520 Echinococcus granulosus. California sheep viscera with multiple hydatid cysts. Echinococcus granulosus. California sheep viscera with multiple hydatid cysts.
 1521 Echinococcus granulosus. Section through adult in dog intestine. Echinococcus granulosus. Section through adult in dog intestine.
 1522 Echinococcus multilocularis. Adult worms from a dog. Echinococcus multilocularis. Adult worms from a dog.
 1523 Echinococcus multilocularis. Portion of infected human liver. Echinococcus multilocularis. Portion of infected human liver.
 1524 Echinococcus multilocularis. PAS stain of infected human liver. Echinococcus multilocularis. PAS stain of infected human liver.
 1525 Echinococcus multilocularis. Silver methenamine stain of infected human liver. Echinococcus multilocularis. Silver methenamine stain of infected human liver.
 1526 Echinococcus vogeli. Adult worms from dog. Echinococcus vogeli. Adult worms from dog.
 1527 Echinococcus oligarthrus. Hydatid cyst in agouti muscle. Echinococcus oligarthrus. Hydatid cyst in agouti muscle.
 1528 Echinococcus granulosus. Egg. Echinococcus granulosus. Egg.
 1529 Echinococcus granulosus. Intraperitoneal cyst. CT scan (1529) and surgical specimen. Echinococcus granulosus. Intraperitoneal cyst. CT scan (1529) and surgical specimen.
 1530 Echinococcus granulosus. Intraperitoneal cyst. CT scan (1529) and surgical specimen. Echinococcus granulosus. Intraperitoneal cyst. CT scan (1529) and surgical specimen.
 1531 Echinococcus granulosus. Intraperitoneal cyst. CT scan (1529) and surgical specimen. Echinococcus granulosus. Intraperitoneal cyst. CT scan (1529) and surgical specimen.
 1532 Echinococcus multilocularis. Scolices from liver. Echinococcus multilocularis. Scolices from liver.
 1533 Echinococcus multilocularis. Needle biopsy of human liver. Echinococcus multilocularis. Needle biopsy of human liver.
 1534 Taenia solium. Photomicrographs of a subcutaneous nodule in a patient. lateral view of the skull shows multiple small amorphous punctate white calcific masses in the brain. These are calcified cysticerci. Some of these lesions are remarkable for presenting in a target-like configuration. The outer line represents calcification of the bladder wall. The inner dot is the calcified scolex. the dark arE surrounding the scolex is fluid. Taenia solium. Photomicrographs of a subcutaneous nodule in a patient. lateral view of the skull shows multiple small amorphous punctate white calcific masses in the brain. These are calcified cysticerci. Some of these lesions are remarkable for presenting in a target-like configuration. The outer line represents calcification of the bladder wall. The inner dot is the calcified scolex. the dark arE surrounding the scolex is fluid.
 1535 Taenia solium. Photomicrographs of a subcutaneous nodule in a patient. lateral view of the skull shows multiple small amorphous punctate white calcific masses in the brain. These are calcified cysticerci. Some of these lesions are remarkable for presenting in a target-like configuration. The outer line represents calcification of the bladder wall. The inner dot is the calcified scolex. the dark arE surrounding the scolex is fluid. Taenia solium. Photomicrographs of a subcutaneous nodule in a patient. lateral view of the skull shows multiple small amorphous punctate white calcific masses in the brain. These are calcified cysticerci. Some of these lesions are remarkable for presenting in a target-like configuration. The outer line represents calcification of the bladder wall. The inner dot is the calcified scolex. the dark arE surrounding the scolex is fluid.
 1536 Taenia solium. Photomicrographs of a subcutaneous nodule in a patient. lateral view of the skull shows multiple small amorphous punctate white calcific masses in the brain. These are calcified cysticerci. Some of these lesions are remarkable for presenting in a target-like configuration. The outer line represents calcification of the bladder wall. The inner dot is the calcified scolex. the dark arE surrounding the scolex is fluid. Taenia solium. Photomicrographs of a subcutaneous nodule in a patient. lateral view of the skull shows multiple small amorphous punctate white calcific masses in the brain. These are calcified cysticerci. Some of these lesions are remarkable for presenting in a target-like configuration. The outer line represents calcification of the bladder wall. The inner dot is the calcified scolex. the dark arE surrounding the scolex is fluid.
 1537 Brugia timori. Elephantiasis of lower extremity. Flores, Indonesia. Brugia timori. Elephantiasis of lower extremity. Flores, Indonesia.
 1538 Brugia timori Abscess formation. Brugia timori Abscess formation.
 1539 Brugia timori Abscess formation. Brugia timori Abscess formation.
 1540 Brugia timori. Draining abscess. White coloration due to application of native medication. Brugia timori. Draining abscess. White coloration due to application of native medication.
 1541 Brugia timori. Cleansed abscess crater. Brugia timori. Cleansed abscess crater.
 1542 Brugia timori. Coconut shell containing drainage from filarial abscess. Cup included to show size relationship. Brugia timori. Coconut shell containing drainage from filarial abscess. Cup included to show size relationship.
 1543 Wuchereria bancrofti. Tanzania. Elephantiasis of lower extremities. Old man continues working in corn field in spite of deformity. Wuchereria bancrofti. Tanzania. Elephantiasis of lower extremities. Old man continues working in corn field in spite of deformity.
 1544 Culex fatigans. Tanzania. Mosquitoes breed in pit latrines like the one being dug here. Transmission occurs at night when mosquitoes invade houses via the eaves. Prevention might be achieved by screening and/or residual insecticides sprayed on walls where heavy mosquitoes rest after biting. Culex fatigans. Tanzania. Mosquitoes breed in pit latrines like the one being dug here. Transmission occurs at night when mosquitoes invade houses via the eaves. Prevention might be achieved by screening and/or residual insecticides sprayed on walls where heavy mosquitoes rest after biting.
 1545 Anopheles gambiae, Anopheles funestus Clean water breeding site for mosquitoes transmitting malaria and filarial worms. Anopheles gambiae, Anopheles funestus Clean water breeding site for mosquitoes transmitting malaria and filarial worms.
 1546 Anopheles freeborni. California malarial vector. Anopheles freeborni. California malarial vector.
 1547 Anopheles stephensi. Indian malarial vector. Anopheles stephensi. Indian malarial vector.
 1548 Dirofilaria immitis When Dirofilaria immitis emerge from the tips of the mosquito (Aedes aegypti) labella or the mid portion of the labium, a small quantity of fluid emerges from the mosquito. The fluid serves to prevent desiccation of the larvae. The larvae within the fluid are obscured by the reflection of light. Dirofilaria immitis When Dirofilaria immitis emerge from the tips of the mosquito (Aedes aegypti) labella or the mid portion of the labium, a small quantity of fluid emerges from the mosquito. The fluid serves to prevent desiccation of the larvae. The larvae within the fluid are obscured by the reflection of light.
 1549 Dirofilaria immitis When Dirofilaria immitis emerge from the tips of the mosquito (Aedes aegypti) labella or the mid portion of the labium, a small quantity of fluid emerges from the mosquito. The fluid serves to prevent desiccation of the larvae. The larvae within the fluid are obscured by the reflection of light. Dirofilaria immitis When Dirofilaria immitis emerge from the tips of the mosquito (Aedes aegypti) labella or the mid portion of the labium, a small quantity of fluid emerges from the mosquito. The fluid serves to prevent desiccation of the larvae. The larvae within the fluid are obscured by the reflection of light.
 1550 Dirofilaria immitis When Dirofilaria immitis emerge from the tips of the mosquito (Aedes aegypti) labella or the mid portion of the labium, a small quantity of fluid emerges from the mosquito. The fluid serves to prevent desiccation of the larvae. The larvae within the fluid are obscured by the reflection of light. Dirofilaria immitis When Dirofilaria immitis emerge from the tips of the mosquito (Aedes aegypti) labella or the mid portion of the labium, a small quantity of fluid emerges from the mosquito. The fluid serves to prevent desiccation of the larvae. The larvae within the fluid are obscured by the reflection of light.
 1551 Anopheles farauti. Cibarial armature. Anopheles farauti. Cibarial armature.
 1552 Anopheles gambiae. Cibarial armature. Anopheles gambiae. Cibarial armature.
 1553 Brugia. Giemsa stained damaged larva from A. gambiae midgut . Brugia. Giemsa stained damaged larva from A. gambiae midgut .
 1554 Wuchereria bancrofti. Giemsa stained damaged larva from A. gambiae m i dg ut. Wuchereria bancrofti. Giemsa stained damaged larva from A. gambiae m i dg ut.
 1555 Mansonia Larva attached to aquatic plant. Mansonia Larva attached to aquatic plant.
 1556 Diphyllobothrium latum. Dr. J. F. Mueller has gently called my attention to the fact that slide 66 originally labeled Diphyllobothrium latum is truly a Spirometra. He has generously donated slides 1355 and 1356 for our enlightenment. Note the rosette shape of the uterus. Diphyllobothrium latum. Dr. J. F. Mueller has gently called my attention to the fact that slide 66 originally labeled Diphyllobothrium latum is truly a Spirometra. He has generously donated slides 1355 and 1356 for our enlightenment. Note the rosette shape of the uterus.
 1557 Echinococcus multilocularis. Multiple lesions are present in the liver of a fatal case from Alaska. Note central necrosis in lesion near the identification number. Echinococcus multilocularis. Multiple lesions are present in the liver of a fatal case from Alaska. Note central necrosis in lesion near the identification number.
 1558 Echinococcus multilocularis. Massive hepatic lesion with central necrosis. Alaska Echinococcus multilocularis. Massive hepatic lesion with central necrosis. Alaska
 1559 Acanthamoeba Twenty-eight year old Mexican lady had a skin lesion for six months. She developed CNS symptoms including headache and nausea. Note position of head. Acanthamoeba Twenty-eight year old Mexican lady had a skin lesion for six months. She developed CNS symptoms including headache and nausea. Note position of head.
 1560 Acanthamoeba Skin lesion enlarged. Acanthamoeba Skin lesion enlarged.
 1561 Acanthamoeba Microscopic views of amoebae in skin lesion. Acanthamoeba Microscopic views of amoebae in skin lesion.
 1562 Acanthamoeba Microscopic views of amoebae in skin lesion. Acanthamoeba Microscopic views of amoebae in skin lesion.
 1563 Acanthamoeba Brain lesion in same patient. Acanthamoeba Brain lesion in same patient.
 1564 Acanthamoeba Microscopic views of amoebae in brain lesions. Acanthamoeba Microscopic views of amoebae in brain lesions.
 1565 Acanthamoeba Microscopic views of amoebae in brain lesions. Acanthamoeba Microscopic views of amoebae in brain lesions.
 1566 Acanthamoeba Trophic amoebae from culture. Acanthamoeba Trophic amoebae from culture.
 1567 Myiasis. Fly larvae in a sacral decubitus ulcer. Patient confined to bed by a fractured femur. Mexico. Myiasis. Fly larvae in a sacral decubitus ulcer. Patient confined to bed by a fractured femur. Mexico.
 1568 Trichuris. Adults on and in colonic mucosa of a steer. Trichuris. Adults on and in colonic mucosa of a steer.
 1569 Echinococcus granulosus. Spleen. Opened cyst. Echinococcus granulosus. Spleen. Opened cyst.
 1570 Armillifer armillatus. Liver sections at different magnifications Armillifer armillatus. Liver sections at different magnifications
 1571 Armillifer armillatus. Liver sections at different magnifications Armillifer armillatus. Liver sections at different magnifications
 1572 Armillifer armillatus. Liver sections at different magnifications Armillifer armillatus. Liver sections at different magnifications
 1573 Rotifera sp. Contaminant on slide. Rotifera sp. Contaminant on slide.
 1574 Wuchereria bancrofti Microfilaria. Wuchereria bancrofti Microfilaria.
 1575 Loa loa. Microfilaria; entire microfilariae (1575), anterior end (1576), posterior end (1577). Loa loa. Microfilaria; entire microfilariae (1575), anterior end (1576), posterior end (1577).
 1576 Loa loa. Microfilaria; entire microfilariae (1575), anterior end (1576), posterior end (1577). Loa loa. Microfilaria; entire microfilariae (1575), anterior end (1576), posterior end (1577).
 1577 Loa loa. Microfilaria; entire microfilariae (1575), anterior end (1576), posterior end (1577). Loa loa. Microfilaria; entire microfilariae (1575), anterior end (1576), posterior end (1577).
 1578 Acanthocheilonema  Microfilaria. Infection acquired Acanthocheilonema Microfilaria. Infection acquired
 1579 Mansonella ozzardi. Microfilaria. Mansonella ozzardi. Microfilaria.
 1580 Alaria americana. Mesocercaria in human stomach. Alaria americana. Mesocercaria in human stomach.
 1581 Plasmodium berghei . Methyl green-pyronin stain. Oocyst on mid-gut wall of Anopheles stephensi. Sporozoites emerge like rays from the sun. Plasmodium berghei . Methyl green-pyronin stain. Oocyst on mid-gut wall of Anopheles stephensi. Sporozoites emerge like rays from the sun.
 1582 Echinococcus granulosus. Field clinic in Utah. Echinococcus granulosus. Field clinic in Utah.
 1583 Echinococcus granulosus. Field clinic in Utah. Echinococcus granulosus. Field clinic in Utah.
 1584 Echinococcus granulosus. Positive skin test. Echinococcus granulosus. Positive skin test.
 1585 Echinococcus granulosus Liver cyst, whole mount. Echinococcus granulosus Liver cyst, whole mount.
 1586 Wuchereria bancrofti. Infectious filaria emerging from the mouth parts of a mosquito (dark-field). Wuchereria bancrofti. Infectious filaria emerging from the mouth parts of a mosquito (dark-field).
 1587 Coenurus. From a human eye. Coenurus. From a human eye.
 1588 Coenurus. From a human eye. Coenurus. From a human eye.
 1589 Schistosoma intercalatum Egg. Schistosoma intercalatum Egg.
 1590 Capillariahepatica Egg in the liver. Capillariahepatica Egg in the liver.
 1591 Cutaneous larva migrans Decorative inscription on a breast. Cutaneous larva migrans Decorative inscription on a breast.
 1592 Brugia malayi. Filarial scar. South, Indonesia. Brugia malayi. Filarial scar. South, Indonesia.
 1593 Brugia malayi. Lymphangitis, one day (1593), two days (1594), three days (1595) and four days after initiation of therapy with diethyl carbamazine. Brugia malayi. Lymphangitis, one day (1593), two days (1594), three days (1595) and four days after initiation of therapy with diethyl carbamazine.
 1594 Brugia malayi. Lymphangitis, one day (1593), two days (1594), three days (1595) and four days after initiation of therapy with diethyl carbamazine. Brugia malayi. Lymphangitis, one day (1593), two days (1594), three days (1595) and four days after initiation of therapy with diethyl carbamazine.
 1595 Brugia malayi. Lymphangitis, one day (1593), two days (1594), three days (1595) and four days after initiation of therapy with diethyl carbamazine. Brugia malayi. Lymphangitis, one day (1593), two days (1594), three days (1595) and four days after initiation of therapy with diethyl carbamazine.
 1596 Brugia malayi. Lymphangitis, one day (1593), two days (1594), three days (1595) and four days after initiation of therapy with diethyl carbamazine. Brugia malayi. Lymphangitis, one day (1593), two days (1594), three days (1595) and four days after initiation of therapy with diethyl carbamazine.
 1597 Brugia malayi Filarial ulcer on the medial aspect of the thigh. Brugia malayi Filarial ulcer on the medial aspect of the thigh.
 1598 Anopheles Adult female obtaining blood meal in Thailand Anopheles Adult female obtaining blood meal in Thailand
 1599 Brugia malayi. Sub-periodic type. Endemic filariasis present in village adjacent to wet forest in S. Kalimantan, Indonesia. Brugia malayi. Sub-periodic type. Endemic filariasis present in village adjacent to wet forest in S. Kalimantan, Indonesia.
 1600 Brugia malayi Endemic area with rubber plantation, rice fields and forest producing mosquitoes which bite individuals traversing the areas in daytime, Multiple vectors (Mansonia a n d Anopheles). Brugia malayi Endemic area with rubber plantation, rice fields and forest producing mosquitoes which bite individuals traversing the areas in daytime, Multiple vectors (Mansonia a n d Anopheles).
 1601 Brugia malayi. Endemic area. Dense rubber tree forest. Daytime transmission. Brugia malayi. Endemic area. Dense rubber tree forest. Daytime transmission.
 1602 Trichinella spiralis. Xerographic demonstration of calcified larvae in the muscles of a rat. The cysts present as minute white specks in the body musculature. Xerography (42KV 180 ma x 0.6 sec. with balloon) Trichinella spiralis. Xerographic demonstration of calcified larvae in the muscles of a rat. The cysts present as minute white specks in the body musculature. Xerography (42KV 180 ma x 0.6 sec. with balloon)
 1603 Trichinella spiralis. Xeroradiograph of bear muscle showing calcified cysts as small dense spots. Trichinella spiralis. Xeroradiograph of bear muscle showing calcified cysts as small dense spots.
 1604 Sparganum proliferum Gross pictures of male patient showing multiple skin lesions which are mostly papular and nodular. Linear elevations suggest shape of the worm beneath the skin. Note gynecomastia. Sparganum proliferum Gross pictures of male patient showing multiple skin lesions which are mostly papular and nodular. Linear elevations suggest shape of the worm beneath the skin. Note gynecomastia.
 1605 Sparganum proliferum Gross pictures of male patient showing multiple skin lesions which are mostly papular and nodular. Linear elevations suggest shape of the worm beneath the skin. Note gynecomastia. Sparganum proliferum Gross pictures of male patient showing multiple skin lesions which are mostly papular and nodular. Linear elevations suggest shape of the worm beneath the skin. Note gynecomastia.
 1606 Sparganum proliferum Longitudinal section through worm in human skin. There is little inflammatory reaction adjacent to the worm but perivascular and perineural mononuclear infiltrates are present. Sparganum proliferum Longitudinal section through worm in human skin. There is little inflammatory reaction adjacent to the worm but perivascular and perineural mononuclear infiltrates are present.
 1607 Eustrongylides ignotus. Fourth stage larva emerging from a cyst. Commonly found in the abdominal cavity of bull minnows, Fundulus heteroclites Human infections have been reported. Eustrongylides ignotus. Fourth stage larva emerging from a cyst. Commonly found in the abdominal cavity of bull minnows, Fundulus heteroclites Human infections have been reported.
 1608 Trichinella spiralis Various magnifications of calcified cysts in masseter muscle of rat xeroradiographed in slide 1602. Trichinella spiralis Various magnifications of calcified cysts in masseter muscle of rat xeroradiographed in slide 1602.
 1609 Trichinella spiralis Various magnifications of calcified cysts in masseter muscle of rat xeroradiographed in slide 1602. Trichinella spiralis Various magnifications of calcified cysts in masseter muscle of rat xeroradiographed in slide 1602.
 1610 Trichinella spiralis Various magnifications of calcified cysts in masseter muscle of rat xeroradiographed in slide 1602. Trichinella spiralis Various magnifications of calcified cysts in masseter muscle of rat xeroradiographed in slide 1602.
 1611 Trichinella spiralis Various magnifications of calcified cysts in masseter muscle of rat xeroradiographed in slide 1602. Trichinella spiralis Various magnifications of calcified cysts in masseter muscle of rat xeroradiographed in slide 1602.
 1612 Hymenolepis diminuta. Egg. Hymenolepis diminuta. Egg.
 1613 Boophilus microplus. Egg laying. Boophilus microplus. Egg laying.
 1614 Boophilus microplus Adult ticks on bovine. Boophilus microplus Adult ticks on bovine.
 1615 Boophilus microplus Adult ticks on bovine. Boophilus microplus Adult ticks on bovine.
 1616 Boophilus microplus Adult ticks on bovine. Boophilus microplus Adult ticks on bovine.
 1617 Boophilus microplus. Severe edematous swelling due to ticks. Boophilus microplus. Severe edematous swelling due to ticks.
 1618 Boophilus microplus. Larvae. Boophilus microplus. Larvae.
 1619 Boophilusmicroplus Releasing larval ticks on a laboratory calf. Boophilusmicroplus Releasing larval ticks on a laboratory calf.
 1620 Boophilus microplus. Artificially feeding blood to ticks in the laboratory. Boophilus microplus. Artificially feeding blood to ticks in the laboratory.
 1621 Boophilus microplus. Ticks infected with Babesia die in large numbers and produce few eggs, (left) as compared to non-infected ticks (right). Boophilus microplus. Ticks infected with Babesia die in large numbers and produce few eggs, (left) as compared to non-infected ticks (right).
 1622 Loa loa Calabar swelling of the forearm. Loa loa Calabar swelling of the forearm.
 1623 Onchocerca volvulus. Skin changes. Onchocerca volvulus. Skin changes.
 1624 Toxoplasma gondii. Retina showing an active and an old lesion. Toxoplasma gondii. Retina showing an active and an old lesion.
 1625 Chloroquin Toxic macular defect presenting as a 'bull's eye'. Chloroquin Toxic macular defect presenting as a 'bull's eye'.
 1626 Echinostoma Circumoral spines. Echinostoma Circumoral spines.
 1627 Dermacentor variabilis. Adults on skin. Dermacentor variabilis. Adults on skin.
 1628 Dermacentor variabilis. Adults on skin. Dermacentor variabilis. Adults on skin.
 1629 Dermacentor variabilis. Adult female on vegetation. Dermacentor variabilis. Adult female on vegetation.
 1630 Sarcoptes scabiei. Severe skin lesions. 'Norwegian scabies'. Sarcoptes scabiei. Severe skin lesions. 'Norwegian scabies'.
 1631 Sarcoptes scabiei. Severe skin lesions. 'Norwegian scabies'. Sarcoptes scabiei. Severe skin lesions. 'Norwegian scabies'.
 1632 Sarcoptes scabiei. Microscopic section through skin showing mites in skin. Sarcoptes scabiei. Microscopic section through skin showing mites in skin.
 1633 Dracunculus medinensis Abscess caused by developing worm. Dracunculus medinensis Abscess caused by developing worm.
 1634 Dracunculus medinensis. Collecting drinking water at a transmission site. Dracunculus medinensis. Collecting drinking water at a transmission site.
 1635 Dracunculus medinensis. Sampling water for Cyclops. Dracunculus medinensis. Sampling water for Cyclops.
 1636 Cryptosporidium. Acid-fast stain of stool specimen. Cryptosporidium. Acid-fast stain of stool specimen.
 1637 Cryptosporidium. Giemsa stain of stool specimen. Cryptosporidium. Giemsa stain of stool specimen.
 1638 Cryptosporidium. Giemsa stain of jejunal biopsy. Cryptosporidium. Giemsa stain of jejunal biopsy.
 1639 Cryptosporidium. Rectal biopsy, epoxy thick section. Cryptosporidium. Rectal biopsy, epoxy thick section.
 1640 Alaria marcianae Adult from an experimentally infected cat. Carmine stain. Alaria marcianae Adult from an experimentally infected cat. Carmine stain.
 1641 Alaria marcianae. Mesocercaria) stage in the connective tissue of mouse mammary gland. Low and high magnifications. Alaria marcianae. Mesocercaria) stage in the connective tissue of mouse mammary gland. Low and high magnifications.
 1642 Alaria marcianae. Mesocercaria) stage in the connective tissue of mouse mammary gland. Low and high magnifications. Alaria marcianae. Mesocercaria) stage in the connective tissue of mouse mammary gland. Low and high magnifications.
 1643 Alaria marcianae. Mesocercarial stage in the adipose tissue of a mouse mammary gland. Note the large, unicellular penetration glands. Low and high magnifications. Alaria marcianae. Mesocercarial stage in the adipose tissue of a mouse mammary gland. Note the large, unicellular penetration glands. Low and high magnifications.
 1644 Alaria marcianae. Mesocercarial stage in the adipose tissue of a mouse mammary gland. Note the large, unicellular penetration glands. Low and high magnifications. Alaria marcianae. Mesocercarial stage in the adipose tissue of a mouse mammary gland. Note the large, unicellular penetration glands. Low and high magnifications.
 1645 Alaria marcianae Mesocercaria in a pool of milk after the destruction of several alveoli in a mammary gland. Alaria marcianae Mesocercaria in a pool of milk after the destruction of several alveoli in a mammary gland.
 1646 Sarcocystis. Sporocysts in submucosa of definitive host (opossum) small bowel. H & E stain. Sarcocystis. Sporocysts in submucosa of definitive host (opossum) small bowel. H & E stain.
 1647 Sarcocystis. Fecal float from opossum fed infected birds. Sarcocystis. Fecal float from opossum fed infected birds.
 1648 Sarcocystis. Giemsa stained lung (budgerigar) impression. 6 days PI. Sarcocystis. Giemsa stained lung (budgerigar) impression. 6 days PI.
 1649 Sarcocystis. Schizonts in budgerigar lung section. 9 days PI. H & E stain. Sarcocystis. Schizonts in budgerigar lung section. 9 days PI. H & E stain.
 1650 Sarcocystis Schizont in budgerigar liver section stained with H & E. 4 weeks PI. Sarcocystis Schizont in budgerigar liver section stained with H & E. 4 weeks PI.
 1651 Sarcocystis. Cysts in leg muscle of budgerigar. 6 weeks PI. Low and high magnifications. Sarcocystis. Cysts in leg muscle of budgerigar. 6 weeks PI. Low and high magnifications.
 1652 Sarcocystis. Cysts in leg muscle of budgerigar. 6 weeks PI. Low and high magnifications. Sarcocystis. Cysts in leg muscle of budgerigar. 6 weeks PI. Low and high magnifications.
 1653 Sarcocystis. Cysts in muscle of budgerigar. 20 weeks PI. Sarcocystis. Cysts in muscle of budgerigar. 20 weeks PI.
 1654 Paragonimus uterobilateralis Sections through adults in Rattus norvegicus lung. Paragonimus uterobilateralis Sections through adults in Rattus norvegicus lung.
 1655 Paragonimus uterobilateralis Sections through adults in Rattus norvegicus lung. Paragonimus uterobilateralis Sections through adults in Rattus norvegicus lung.
 1656 Anisakis. Low and high power magnifications of worm in human stomach wall. Case from Holland Anisakis. Low and high power magnifications of worm in human stomach wall. Case from Holland
 1657 Anisakis. Low and high power magnifications of worm in human stomach wall. Case from Holland Anisakis. Low and high power magnifications of worm in human stomach wall. Case from Holland
 1658 Anisakis. Low and high power magnifications of worm in human stomach wall. Case from Holland Anisakis. Low and high power magnifications of worm in human stomach wall. Case from Holland
 1659 Anisakis. Another case from Holland. Low and high power magnifications of worms in stomach wall. Slide 1661 shows necrotic reaction around larva in an eosinophilic granuloma later in the infection (4 months). Anisakis. Another case from Holland. Low and high power magnifications of worms in stomach wall. Slide 1661 shows necrotic reaction around larva in an eosinophilic granuloma later in the infection (4 months).
 1660 Anisakis. Another case from Holland. Low and high power magnifications of worms in stomach wall. Slide 1661 shows necrotic reaction around larva in an eosinophilic granuloma later in the infection (4 months). Anisakis. Another case from Holland. Low and high power magnifications of worms in stomach wall. Slide 1661 shows necrotic reaction around larva in an eosinophilic granuloma later in the infection (4 months).
 1661 Anisakis. Another case from Holland. Low and high power magnifications of worms in stomach wall. Slide 1661 shows necrotic reaction around larva in an eosinophilic granuloma later in the infection (4 months). Anisakis. Another case from Holland. Low and high power magnifications of worms in stomach wall. Slide 1661 shows necrotic reaction around larva in an eosinophilic granuloma later in the infection (4 months).
 1662 Anisakis. Experimental rabbit infection. Anisakis. Experimental rabbit infection.
 1663 Toxoplasma gondii Myositi s in a dog. Low and high powers. Toxoplasma gondii Myositi s in a dog. Low and high powers.
 1664 Toxoplasma gondii Myositi s in a dog. Low and high powers. Toxoplasma gondii Myositi s in a dog. Low and high powers.
 1665 Toxoplasma gondii. Encephalitis in an East German baby. Toxoplasma gondii. Encephalitis in an East German baby.
 1666 Toxoplasma gondii Giemsa stained mouse brain squash. Low and high magnifications. Toxoplasma gondii Giemsa stained mouse brain squash. Low and high magnifications.
 1667 Toxoplasma gondii Giemsa stained mouse brain squash. Low and high magnifications. Toxoplasma gondii Giemsa stained mouse brain squash. Low and high magnifications.
 1668 Toxoplasma gondii. Giemsa stained monkey tissue culture. Toxoplasma gondii. Giemsa stained monkey tissue culture.
 1669 Sarcoptes scabiei Rabbit ear section. Hematoxylin-eosin stain. Sarcoptes scabiei Rabbit ear section. Hematoxylin-eosin stain.
 1670 Dioctophyma renale. See Leisegang rings. Dioctophyma renale. See Leisegang rings.
 1671 Dioctophyma renale. See Leisegang rings. Dioctophyma renale. See Leisegang rings.
 1672 Schistosoma mansoni Cercariae. Schistosoma mansoni Cercariae.
 1673 Biomphalaria glabrata. Sections through normal snail liver. Biomphalaria glabrata. Sections through normal snail liver.
 1674 Schistosoma mansoni. Sections through snail (Biomphalaria glabrata) liver containing sporocysts 54 days after infection. Schistosoma mansoni. Sections through snail (Biomphalaria glabrata) liver containing sporocysts 54 days after infection.
 1675 Schistosoma mansoni. Sections through snail (Biomphalaria glabrata) liver containing sporocysts 54 days after infection. Schistosoma mansoni. Sections through snail (Biomphalaria glabrata) liver containing sporocysts 54 days after infection.
 1676 Schistosoma mansoni. Similar section made 72 days after infection. Fully developed cercariae are present. Schistosoma mansoni. Similar section made 72 days after infection. Fully developed cercariae are present.
 1677 Pyemotes ventricosus. Adult female. Pyemotes ventricosus. Adult female.
 1678 Pyemotes ventricosus. Reaction to bite. Pyemotes ventricosus. Reaction to bite.
 1679 Strongyloides stercoralis. Linear, migrating, urticarial, pruritic rash on abdomen of patient suffering chronic infection. Strongyloides stercoralis. Linear, migrating, urticarial, pruritic rash on abdomen of patient suffering chronic infection.
 1680 Strongyloides stercoralis. Linear, migrating, urticarial, pruritic rash on abdomen of patient suffering chronic infection. Strongyloides stercoralis. Linear, migrating, urticarial, pruritic rash on abdomen of patient suffering chronic infection.
 1681 Hookworm Egg in stool from Liberian patient. Hookworm Egg in stool from Liberian patient.
 1682 Trichuris trichiura and Hookworm. Eggs in stool from Liberian patient. Trichuris trichiura and Hookworm. Eggs in stool from Liberian patient.
 1683 Paragonimus miyazakii  Metacercaria which may cause pleuritis and pneumothorax in man. Paragonimus miyazakii Metacercaria which may cause pleuritis and pneumothorax in man.
 1684 Trypanosoma cruzi. A large parasitized cell protrudes into an alveolus of this patient suffering from congenitally transmitted Chagas' disease. Trypanosoma cruzi. A large parasitized cell protrudes into an alveolus of this patient suffering from congenitally transmitted Chagas' disease.
 1685 Plasmodium cynomolgi bastianelli Demonstration of hypnozoite and hepatic schizonts by immunofluorescent antibodies and subsequent counterstaining by Giemsa colophonium. Plasmodium cynomolgi bastianelli Demonstration of hypnozoite and hepatic schizonts by immunofluorescent antibodies and subsequent counterstaining by Giemsa colophonium.
 1686 Plasmodium cynomolgi bastianelli Demonstration of hypnozoite and hepatic schizonts by immunofluorescent antibodies and subsequent counterstaining by Giemsa colophonium. Plasmodium cynomolgi bastianelli Demonstration of hypnozoite and hepatic schizonts by immunofluorescent antibodies and subsequent counterstaining by Giemsa colophonium.
 1687 Plasmodium cynomolgi bastianelli Demonstration of hypnozoite and hepatic schizonts by immunofluorescent antibodies and subsequent counterstaining by Giemsa colophonium. Plasmodium cynomolgi bastianelli Demonstration of hypnozoite and hepatic schizonts by immunofluorescent antibodies and subsequent counterstaining by Giemsa colophonium.
 1688 Plasmodium cynomolgi bastianelli Demonstration of hypnozoite and hepatic schizonts by immunofluorescent antibodies and subsequent counterstaining by Giemsa colophonium. Plasmodium cynomolgi bastianelli Demonstration of hypnozoite and hepatic schizonts by immunofluorescent antibodies and subsequent counterstaining by Giemsa colophonium.
 1689 Trypanosoma cruzi. Megacolon at autopsy. Trypanosoma cruzi. Megacolon at autopsy.
 1690 Onchocerca volvulus. Eye destruction in a Mexican patient who suffered the disease for 13 years. Onchocerca volvulus. Eye destruction in a Mexican patient who suffered the disease for 13 years.
 1691 Onchocerca volvulus. Mazzotti reaction in a Mexican child with facial edema and rash over deltoid region of the arm. Onchocerca volvulus. Mazzotti reaction in a Mexican child with facial edema and rash over deltoid region of the arm.
 1692 Onchocerca volvulus. Mazzotti reaction in a Mexican child with facial edema and rash over deltoid region of the arm. Onchocerca volvulus. Mazzotti reaction in a Mexican child with facial edema and rash over deltoid region of the arm.
 1693 Leishmania braziliensis. Ulcer on the nose of a domestic dog in Bolivia. Leishmania braziliensis. Ulcer on the nose of a domestic dog in Bolivia.
 1694 Leishmaniamexicana. Diffuse anergic cutaneous leishmaniasis in a 37 year old Mexican female. Disease started as an ulcer of the foot 17 years earlier. Leishmaniamexicana. Diffuse anergic cutaneous leishmaniasis in a 37 year old Mexican female. Disease started as an ulcer of the foot 17 years earlier.
 1695 Leishmaniamexicana. Diffuse anergic cutaneous leishmaniasis in a 37 year old Mexican female. Disease started as an ulcer of the foot 17 years earlier. Leishmaniamexicana. Diffuse anergic cutaneous leishmaniasis in a 37 year old Mexican female. Disease started as an ulcer of the foot 17 years earlier.
 1696 Leishmania braziliensis. Diffuse anergic cutaneous leishmaniasis. Patient is a 68 year old laborer whose disease started as a papule on the side of the nose plus others on the extremities about 15 years earlier. Leishmania braziliensis. Diffuse anergic cutaneous leishmaniasis. Patient is a 68 year old laborer whose disease started as a papule on the side of the nose plus others on the extremities about 15 years earlier.
 1697 Leishmania mexicana. Diffuse anergic cutaneous leishmaniasis. Leishmania mexicana. Diffuse anergic cutaneous leishmaniasis.
 1698 Enterobius vermicularis. Multiple adults are present on the perianal skin. Enterobius vermicularis. Multiple adults are present on the perianal skin.
 1699 Enterobius vermicularis. Two adults in a test tube. Enterobius vermicularis. Two adults in a test tube.
 1700 Loa loa Calabar swelling of knee in 38 year old geologist who worked in Zaire for 3 years. Loa loa Calabar swelling of knee in 38 year old geologist who worked in Zaire for 3 years.
 1701 Lagochilascaris. Neck abscess in 7 year old girl which drained approximately forty nematodes. Each was about one cm: long. Lagochilascaris. Neck abscess in 7 year old girl which drained approximately forty nematodes. Each was about one cm: long.
 1702 Lagochilascaris. Encapsulated larvae in submucosa of resected tonsil. Lagochilascaris. Encapsulated larvae in submucosa of resected tonsil.
 1703 Loa loa Subconjunctival nematode. Photo courtesy D. Gendelman. Loa loa Subconjunctival nematode. Photo courtesy D. Gendelman.
 1704 Eurytrema pancreaticum. Adult trematode found in human pancreatic duct. Posterior end of worm amputated during dissection. Eurytrema pancreaticum. Adult trematode found in human pancreatic duct. Posterior end of worm amputated during dissection.
 1705 Eurytrema pancreaticum. Section through portion of adult. Eurytrema pancreaticum. Section through portion of adult.
 1706 Eurytrema pancreaticum. Eggs. Eurytrema pancreaticum. Eggs.
 1707 Eurytrema pancreaticum. Eggs Eurytrema pancreaticum. Eggs
 1708 Brugia malayi. Larvae (L3) in Aedes aegypti proboscis. Brugia malayi. Larvae (L3) in Aedes aegypti proboscis.
 1709 Theileria. Tick (Rhipicephalus) salivary glands containing Theileria. Theileria. Tick (Rhipicephalus) salivary glands containing Theileria.
 1710 Plasmodium falciparum. Retinal hemorrhage associated with cerebral malaria. Plasmodium falciparum. Retinal hemorrhage associated with cerebral malaria.
 1711 Taenia solium. Cysticerci 'bubble up' from cisterna magna during surgery. Photo courtesy F. Ciferri. Taenia solium. Cysticerci 'bubble up' from cisterna magna during surgery. Photo courtesy F. Ciferri.
 1712 Schistosoma mekongi Eggs in stool. Photo courtesy W. H. Dunne. Schistosoma mekongi Eggs in stool. Photo courtesy W. H. Dunne.
 1713 Schistosoma mekongi Eggs in stool. Photo courtesy W. H. Dunne. Schistosoma mekongi Eggs in stool. Photo courtesy W. H. Dunne.
 1714 Schistosoma mekongi Eggs in stool. Photo courtesy W. H. Dunne. Schistosoma mekongi Eggs in stool. Photo courtesy W. H. Dunne.
 1715 Schistosoma mekongi Eggs in stool. Photo courtesy W. H. Dunne. Schistosoma mekongi Eggs in stool. Photo courtesy W. H. Dunne.
 1716 Echinococcusgranulosus Allergic skin reaction. Echinococcusgranulosus Allergic skin reaction.
 1717 Echinococcusgranulosus Bile stained liver cyst. . Echinococcusgranulosus Bile stained liver cyst. .
 1718 Echinococcusgranulosus Bile stained liver cyst. . Echinococcusgranulosus Bile stained liver cyst. .
 1719 Echinococcusgranulosus Bile stained liver cyst. . Echinococcusgranulosus Bile stained liver cyst. .
 1720 Echinococcusgranulosus Bile stained liver cyst. . Echinococcusgranulosus Bile stained liver cyst. .
 1721 Echinococcusgranulosus Bile stained liver cyst. . Echinococcusgranulosus Bile stained liver cyst. .
 1722 Echinococcusgranulosus Bile stained liver cyst. . Echinococcusgranulosus Bile stained liver cyst. .
 1723 Plasmodium falciparum. Malaria parasites in maternal placental sinus Plasmodium falciparum. Malaria parasites in maternal placental sinus
 1724 Plasmodium falciparum. Malaria parasites in maternal placental sinus Plasmodium falciparum. Malaria parasites in maternal placental sinus
 1725 Plasmodium falciparum. Malaria parasites in maternal placental sinus Plasmodium falciparum. Malaria parasites in maternal placental sinus
 1726 Cryptosporidium. Photomicrographs showing parasites in rectum. H & E stain. Cryptosporidium. Photomicrographs showing parasites in rectum. H & E stain.
 1727 Cryptosporidium. Photomicrographs showing parasites in rectum. H & E stain. Cryptosporidium. Photomicrographs showing parasites in rectum. H & E stain.
 1728 Cryptosporidium. Parasites in rectum. Toluidine blue stain. Cryptosporidium. Parasites in rectum. Toluidine blue stain.
 1729 Strongyloides stercoralis. Adult female in duodenal mucosa of Erythrocebus patas. Strongyloides stercoralis. Adult female in duodenal mucosa of Erythrocebus patas.
 1730 Strongyloides stercoralis. Eggs and larvae in intraepithelial tunnels of duodenal mucosa of Erythrocebus patas. Strongyloides stercoralis. Eggs and larvae in intraepithelial tunnels of duodenal mucosa of Erythrocebus patas.
 1731 Strongyloides stercoralis Duodenal ulcer induced by experimental infection of Erythrocebus patas. Strongyloides stercoralis Duodenal ulcer induced by experimental infection of Erythrocebus patas.
 1732 Strongyloides stercoralis. Jejunitis induced by experimental infection in Erythrocebus patas. Strongyloides stercoralis. Jejunitis induced by experimental infection in Erythrocebus patas.
 1733 Strongyloides stercoralis Giant cell granulomata induced in mesenteric lymph nodes by experimental infection in Erythrocebus patus. Strongyloides stercoralis Giant cell granulomata induced in mesenteric lymph nodes by experimental infection in Erythrocebus patus.
 1734 Strongyloides stercoralis. Larval migration through colonic wall during experimental infection of Erythrocebus patas. Strongyloides stercoralis. Larval migration through colonic wall during experimental infection of Erythrocebus patas.
 1735 Strongyloides stercoralis. Larval migration through colonic wall during experimental infection of Erythrocebus patas. Strongyloides stercoralis. Larval migration through colonic wall during experimental infection of Erythrocebus patas.
 1736 Strongyloides stercoralis. Note lateral alae on larvae within pulmonary alveoli during experimental infection of Erythrocebus patas. Strongyloides stercoralis. Note lateral alae on larvae within pulmonary alveoli during experimental infection of Erythrocebus patas.
 1737 Strongyloides stercoralis Larvae are present in an area of pulmonary hemorrhage within an experimentally infected Erythrocebus patas. Strongyloides stercoralis Larvae are present in an area of pulmonary hemorrhage within an experimentally infected Erythrocebus patas.
 1738 Acanthamoeba castellanii Brain slices showing massive destruction due to granulomatous amoebic encephalopathy. Acanthamoeba castellanii Brain slices showing massive destruction due to granulomatous amoebic encephalopathy.
 1739 Acanthamoeba castellanii Perivascular cuffing by amoebae. Occipital lobe. Masson trichrome stain. Acanthamoeba castellanii Perivascular cuffing by amoebae. Occipital lobe. Masson trichrome stain.
 1740 Acanthamoeba Cyst from a Zambian case. Toluidine blue stain. Nomarski technique. Acanthamoeba Cyst from a Zambian case. Toluidine blue stain. Nomarski technique.
 1741 Cutaneous larval migrans Thumb. Cutaneous larval migrans Thumb.
 1742 Pseudoterranova (Phocanerna) decipiens Third stage larvae in flesh of Cadus microcephalus, the Pacific cod. Pseudoterranova (Phocanerna) decipiens Third stage larvae in flesh of Cadus microcephalus, the Pacific cod.
 1743 Pseudoterranova (Phocanema) decipiens. Larva in stomach of an experimentally infected miniature pig. Pseudoterranova (Phocanema) decipiens. Larva in stomach of an experimentally infected miniature pig.
 1744 Pseudoterranova (Phocanema) decipiens. Anterior end of a larva in submucosa of miniature pig. Pseudoterranova (Phocanema) decipiens. Anterior end of a larva in submucosa of miniature pig.
 1745 Pseudoterranova (Phocanema) decipiens. Anterior end of a larva in submucosa of miniature pig. Pseudoterranova (Phocanema) decipiens. Anterior end of a larva in submucosa of miniature pig.
 1746 Pseudoterran ova (Phocanema) decipiens. Evacuated attachment cap in the submucosa of an experimentally infected guinea pig. Pseudoterran ova (Phocanema) decipiens. Evacuated attachment cap in the submucosa of an experimentally infected guinea pig.
 1747 Anisakis simplex. Third stage larvae in the flesh of Culpea harengus harengus, the Atlantic herring. Anisakis simplex. Third stage larvae in the flesh of Culpea harengus harengus, the Atlantic herring.
 1748 Anisakis simplex. Photomicrograph of section through larvae in the submucosa of a pig. Anisakis simplex. Photomicrograph of section through larvae in the submucosa of a pig.
 1749 Anisakis simplex. Section through larval nerve ring. Anisakis simplex. Section through larval nerve ring.
 1750 Toxocara Brain sections from a young male adult who died suddenly and unexpectedly in an institution for the retarded. Larva and brain reaction are well shown. Toxocara Brain sections from a young male adult who died suddenly and unexpectedly in an institution for the retarded. Larva and brain reaction are well shown.
 1751 Toxocara Brain sections from a young male adult who died suddenly and unexpectedly in an institution for the retarded. Larva and brain reaction are well shown. Toxocara Brain sections from a young male adult who died suddenly and unexpectedly in an institution for the retarded. Larva and brain reaction are well shown.
 1752 Toxocara Brain sections from a young male adult who died suddenly and unexpectedly in an institution for the retarded. Larva and brain reaction are well shown. Toxocara Brain sections from a young male adult who died suddenly and unexpectedly in an institution for the retarded. Larva and brain reaction are well shown.
 1753 Trichinella spiralis. Diffuse inflammatory lesion. Trichinella spiralis. Diffuse inflammatory lesion.
 1754 Trichinella spiralis. Pericardial lesion. Trichinella spiralis. Pericardial lesion.
 1755 Trichinella spiralis Focal myocardial lesions at low and high powers. Trichinella spiralis Focal myocardial lesions at low and high powers.
 1756 Trichinella spiralis Focal myocardial lesions at low and high powers. Trichinella spiralis Focal myocardial lesions at low and high powers.
 1757 Trichinella spiralis Focal myocardial lesions at low and high powers. Trichinella spiralis Focal myocardial lesions at low and high powers.
 1758 Trichinella spiralis Perivascular inflammatory lesions. Trichinella spiralis Perivascular inflammatory lesions.
 1759 Trichinella spiralis Perivascular inflammatory lesions. Trichinella spiralis Perivascular inflammatory lesions.
 1760 Trichinella spiralis. Experimental infection in a vole. Larvae not yet fully encysted. Trichinella spiralis. Experimental infection in a vole. Larvae not yet fully encysted.
 1761 Schistosoma. Cercariae before and after skin penetration. Schistosoma. Cercariae before and after skin penetration.
 1762 Schistosoma. Cercariae before and after skin penetration. Schistosoma. Cercariae before and after skin penetration.
 1763 Schistosoma mansoni. Young schistosomule. Schistosoma mansoni. Young schistosomule.
 1764 Taenia saginata Cysticercus digested free of muscle. Iodine stained. Taenia saginata Cysticercus digested free of muscle. Iodine stained.
 1765 Taenia saginata Beef heart harboring multiple cysticerci. Gross specimen. Taenia saginata Beef heart harboring multiple cysticerci. Gross specimen.
 1766 Taenia saginata Beef heart harboring multiple cysticerci. Gross specimen. Taenia saginata Beef heart harboring multiple cysticerci. Gross specimen.
 1767 Taenia solium Cysticercus digested free of muscle. Note hooks on protoscolex. Whole mount. Carmine stain. Taenia solium Cysticercus digested free of muscle. Note hooks on protoscolex. Whole mount. Carmine stain.
 1768 Taenia saginata Beef hearts harboring multiple cysticerci. Taenia saginata Beef hearts harboring multiple cysticerci.
 1769 Taenia saginata Beef hearts harboring multiple cysticerci. Taenia saginata Beef hearts harboring multiple cysticerci.
 1770 Leishmania Diffuse cutaneous leishmaniasis. Facial lesions on mother and child. Leishmania Diffuse cutaneous leishmaniasis. Facial lesions on mother and child.
 1771 Leishmania. Diffuse cutaneous leishmaniasis. Progressive improvement in maternal lesion on therapy. Leishmania. Diffuse cutaneous leishmaniasis. Progressive improvement in maternal lesion on therapy.
 1772 Leishmania. Diffuse cutaneous leishmaniasis. Progressive improvement in maternal lesion on therapy. Leishmania. Diffuse cutaneous leishmaniasis. Progressive improvement in maternal lesion on therapy.
 1773 Leishmania. Diffuse cutaneous leishmaniasis. Facial lesion. Leishmania. Diffuse cutaneous leishmaniasis. Facial lesion.
 1774 Leishmania. Diffuse cutaneus leishmaniasis. Lesion on forearm. Leishmania. Diffuse cutaneus leishmaniasis. Lesion on forearm.
 1775 Leishmania. Diffuse cutaneus leishmaniasis. Amastigotes in splenic aspirate. Leishmania. Diffuse cutaneus leishmaniasis. Amastigotes in splenic aspirate.
 1776 Leishmania. Diffuse cutaneous leishmaniasis. Amastigotes in bone marrow. Leishmania. Diffuse cutaneous leishmaniasis. Amastigotes in bone marrow.
 1777 Heterobilharzia americana Eggs in armadillo (Dasypus novemcinctus) liver. Heterobilharzia americana Eggs in armadillo (Dasypus novemcinctus) liver.
 1778 Heterobilharzia americana Eggs in armadillo (Dasypus novemcinctus) liver. Heterobilharzia americana Eggs in armadillo (Dasypus novemcinctus) liver.
 1779 Heterobilharzia Americana Eggs in armadillo bowel. Heterobilharzia Americana Eggs in armadillo bowel.
 1780 Heterobilharzia Americana Eggs in armadillo bowel. Heterobilharzia Americana Eggs in armadillo bowel.
 1781 Wuchereria bancrofti Swelling and skin desquamation of left leg and foot of a two-year old female. An acute epi :e of cellulitis and 1 ymphangiti s began eleven days earlier. Wuchereria bancrofti Swelling and skin desquamation of left leg and foot of a two-year old female. An acute epi :e of cellulitis and 1 ymphangiti s began eleven days earlier.
 1782 Wuchereria bancrofti. Elephantiasis above and below the knees in a twenty-year old male. His case is unusual in its early onset (age twelve), rapid progress, and absence of symptoms other than fever. Wuchereria bancrofti. Elephantiasis above and below the knees in a twenty-year old male. His case is unusual in its early onset (age twelve), rapid progress, and absence of symptoms other than fever.
 1783 Wuchereria bancrofti. Cellulitis and elephantiasis of the right leg of seventy-seven year old female. An attack began four days earlier. Case acquired thirty years ago. Wuchereria bancrofti. Cellulitis and elephantiasis of the right leg of seventy-seven year old female. An attack began four days earlier. Case acquired thirty years ago.
 1784 Wuchereria bancrofti. Medial aspect of right leg of thirty-three year old male. The case was acquired twenty-three years ago. The scar is from a Thompson operation (buried dermal flap). Photographed during admission to hospital prior to a lateral Thompson procedure on the same leg. Wuchereria bancrofti. Medial aspect of right leg of thirty-three year old male. The case was acquired twenty-three years ago. The scar is from a Thompson operation (buried dermal flap). Photographed during admission to hospital prior to a lateral Thompson procedure on the same leg.
 1785 Wuchereria bancrofti. Elephantiasis, desquamation, thinning and hyperkeratosis of skin and left leg of a sixty-six year old male. Patient stated that the use of isopropyl alcohol during attacks caused the desquamation. Case was acquired forty years ago. Wuchereria bancrofti. Elephantiasis, desquamation, thinning and hyperkeratosis of skin and left leg of a sixty-six year old male. Patient stated that the use of isopropyl alcohol during attacks caused the desquamation. Case was acquired forty years ago.
 1786 Wuchereria bancrofti. Folliculitis, hyperkeratosis and elephantiasis of the right leg of a fifty-four year old female. Case was acquired twenty-four years ago. Wuchereria bancrofti. Folliculitis, hyperkeratosis and elephantiasis of the right leg of a fifty-four year old female. Case was acquired twenty-four years ago.
 1787 Wuchereria bancrofti. Thirty-year old male. Left leg has moderate elephantiasis, hyperkeratosis, and a medial incision scar from a Thompson operation. The boundary of atrophic and normal skin is sharply marked. There is loss of hair and sweat glands. The skin is rough. Wuchereria bancrofti. Thirty-year old male. Left leg has moderate elephantiasis, hyperkeratosis, and a medial incision scar from a Thompson operation. The boundary of atrophic and normal skin is sharply marked. There is loss of hair and sweat glands. The skin is rough.
 1788 Wuchereria bancrofti. Heavy cobblestone hyperkeratosis and elephantiasis of the left leg of a forty-four year old female. Case was acquired thirty-two years earlier. Wuchereria bancrofti. Heavy cobblestone hyperkeratosis and elephantiasis of the left leg of a forty-four year old female. Case was acquired thirty-two years earlier.
 1789 Wuchereria bancrofti. Elephantiasis, hyperkeratosis and nodule like fibrosis on the lower right leg of a sixty-eight year old female. The case was acquired thirty years earlier. Patient claimed cosmetic surgery on this leg thirty years ago, but incision scars could not be identified. Wuchereria bancrofti. Elephantiasis, hyperkeratosis and nodule like fibrosis on the lower right leg of a sixty-eight year old female. The case was acquired thirty years earlier. Patient claimed cosmetic surgery on this leg thirty years ago, but incision scars could not be identified.
 1790 Wuchereria bancrofti. Marked unilateral right elephantiasis in a thirty-eight year old female. Leg is unusually lobulated, hard and lumpy. Acquired twenty-four years earlier. Wuchereria bancrofti. Marked unilateral right elephantiasis in a thirty-eight year old female. Leg is unusually lobulated, hard and lumpy. Acquired twenty-four years earlier.
 1791 Wuchereria bancrofti. Elephantiasis, penetrating ulceration, heavy verrucal hyperkeratosis ('mossy foot'), and nodules on the left leg of a seventy-four year old male. Close-up slide shows the back of the leg just above the heel. Swelling began thirty years ago and ulceration nine years ago. Skin is armor-like and cracked in places. Leg is foul smelling and oozes a material like purulent lymph. Wuchereria bancrofti. Elephantiasis, penetrating ulceration, heavy verrucal hyperkeratosis ('mossy foot'), and nodules on the left leg of a seventy-four year old male. Close-up slide shows the back of the leg just above the heel. Swelling began thirty years ago and ulceration nine years ago. Skin is armor-like and cracked in places. Leg is foul smelling and oozes a material like purulent lymph.
 1792 Wuchereria bancrofti. Elephantiasis, penetrating ulceration, heavy verrucal hyperkeratosis ('mossy foot'), and nodules on the left leg of a seventy-four year old male. Close-up slide shows the back of the leg just above the heel. Swelling began thirty years ago and ulceration nine years ago. Skin is armor-like and cracked in places. Leg is foul smelling and oozes a material like purulent lymph. Wuchereria bancrofti. Elephantiasis, penetrating ulceration, heavy verrucal hyperkeratosis ('mossy foot'), and nodules on the left leg of a seventy-four year old male. Close-up slide shows the back of the leg just above the heel. Swelling began thirty years ago and ulceration nine years ago. Skin is armor-like and cracked in places. Leg is foul smelling and oozes a material like purulent lymph.
 1793 Wuchereria bancrofti. Papillomatous change along the interdigital clefts of the right toes of a fifty-one year old male. Patient has bilateral leg lymphedema beginning forty-one years earlier. Wuchereria bancrofti. Papillomatous change along the interdigital clefts of the right toes of a fifty-one year old male. Patient has bilateral leg lymphedema beginning forty-one years earlier.
 1794 Wuchereria bancrofti Advanced papillomatous changes on the left toes of a forty-year old female. The case was acquired twentyfour years ago. The leg is enlarged but with little other skin change. Wuchereria bancrofti Advanced papillomatous changes on the left toes of a forty-year old female. The case was acquired twentyfour years ago. The leg is enlarged but with little other skin change.
 1795 Wuchereria bancrofti. Elephantiasis of foot and heavily hyperkeratotic ankle lobules on left leg of a fifty-five year old male. Elephantiasis began twenty years earlier and the left leg is now enormously enlarged. Wuchereria bancrofti. Elephantiasis of foot and heavily hyperkeratotic ankle lobules on left leg of a fifty-five year old male. Elephantiasis began twenty years earlier and the left leg is now enormously enlarged.
 1796 Wuchereria bancrofti. A Charles operation (total lymphangiectomy) for elephantiasis of right leg, done thirty-four years earlier on a forty-five old female. The leg is normal in size but has become hyperkeratotic. Wuchereria bancrofti. A Charles operation (total lymphangiectomy) for elephantiasis of right leg, done thirty-four years earlier on a forty-five old female. The leg is normal in size but has become hyperkeratotic.
 1797 Baylisascaris procyonis. Adults from raccoon intestine. Baylisascaris procyonis. Adults from raccoon intestine.
 1798 Baylisascaris procyonis. Undeveloped egg from raccoon feces. Baylisascaris procyonis. Undeveloped egg from raccoon feces.
 1799 Baylisascaris procyonis. Infective egg from soil. Baylisascaris procyonis. Infective egg from soil.
 1800 Baylisascaris procyonis. In a midwestern barn, bales of straw were contaminated by raccoon feces. Baylisascaris procyonis. In a midwestern barn, bales of straw were contaminated by raccoon feces.
 1801 Baylisascaris procyonis. Neurologic disease in infected chickens. Baylisascaris procyonis. Neurologic disease in infected chickens.
 1802 Baylisascaris procyonis. Infected chickens showing torticollis and extensor rigidity. Baylisascaris procyonis. Infected chickens showing torticollis and extensor rigidity.
 1803 Baylisascaris procyonis. Larva recovered from chicken brain by Baermann technique. Baylisascaris procyonis. Larva recovered from chicken brain by Baermann technique.
 1804 Baylisascaris procyonis. Qpisthotonus in an infected rabbit. Baylisascaris procyonis. Qpisthotonus in an infected rabbit.
 1805 Baylisascaris procyonis. Epicardial granuloma with larva in an infected rabbit. Baylisascaris procyonis. Epicardial granuloma with larva in an infected rabbit.
 1806 Baylisascaris procyonis. Rabbit cerebellum showing encephalitis, malacia and necrosis. Baylisascaris procyonis. Rabbit cerebellum showing encephalitis, malacia and necrosis.
 1807 Baylisascaris procyonis. Larva in rabbit cerebrum. Baylisascaris procyonis. Larva in rabbit cerebrum.
 1808 Baylisascaris procyonis. Larva and inflammation in corpus callosum of an infected rabbit. Baylisascaris procyonis. Larva and inflammation in corpus callosum of an infected rabbit.
 1809 Baylisascaris procyonis. Larva in rabbit cerebrum. Baylisascaris procyonis. Larva in rabbit cerebrum.
 1810 Baylisascaris procyonis. Infective eggs recovered from soil in a rabbit cage which had previously housed raccoons. Baylisascaris procyonis. Infective eggs recovered from soil in a rabbit cage which had previously housed raccoons.
 1811 Baylisascaris procyonis. Experimentally infected rabbit suffering loss of equilibrium, ataxia and torticollis. Baylisascaris procyonis. Experimentally infected rabbit suffering loss of equilibrium, ataxia and torticollis.
 1812 Baylisascaris procyonis Loss of equilibrium, ataxia and encephalitis in an experimentally infected woodchuck. Baylisascaris procyonis Loss of equilibrium, ataxia and encephalitis in an experimentally infected woodchuck.
 1813 Baylisascaris procyonis. Pulmonary granuloma in a naturally infected woodchuck. Baylisascaris procyonis. Pulmonary granuloma in a naturally infected woodchuck.
 1814 Baylisascaris procyonis. Myocardial and epicardial granulomas in an experimentally infected woodchuck. Baylisascaris procyonis. Myocardial and epicardial granulomas in an experimentally infected woodchuck.
 1815 Baylisascaris procyonis. Encephalitis in an experimentally infected grey squirrel. Baylisascaris procyonis. Encephalitis in an experimentally infected grey squirrel.
 1816 Baylisascaris procyonis. Myocardial granuloma in skeletal muscle of an experimental hamster. Baylisascaris procyonis. Myocardial granuloma in skeletal muscle of an experimental hamster.
 1817 Baylisascaris procyonis. Larval granuloma in skeletal muscle of an experimental hamster. Baylisascaris procyonis. Larval granuloma in skeletal muscle of an experimental hamster.
 1818 Baylisascaris procyonis. Cerebrum of an experimentally infected hamster showing encephalitis, malacia, necrosis and larva. Baylisascaris procyonis. Cerebrum of an experimentally infected hamster showing encephalitis, malacia, necrosis and larva.
 1819 Baylisascaris procyonis. Cerebellum of an experimentally infected hamster showing perivascular cuffing, encephalitis, malacia and necrosis. Baylisascaris procyonis. Cerebellum of an experimentally infected hamster showing perivascular cuffing, encephalitis, malacia and necrosis.
 1820 Baylisascaris procyonis. Experimentally infected ferret suffering encephalitis, extensor rigidity and opisthotonus. Baylisascaris procyonis. Experimentally infected ferret suffering encephalitis, extensor rigidity and opisthotonus.
 1821 Baylisascaris procyonis. Experimentally infected rat with CNS disease. Baylisascaris procyonis. Experimentally infected rat with CNS disease.
 1822 Baylisascaris procyonis. Experimentally infected duck suffering encephalitis with severe torticollis. Baylisascaris procyonis. Experimentally infected duck suffering encephalitis with severe torticollis.
 1823 Baylisascaris procyonis. Experimentally infected chicken suffering encephalitis, with extensor rigidity and torticollis. Baylisascaris procyonis. Experimentally infected chicken suffering encephalitis, with extensor rigidity and torticollis.
 1824 Baylisascaris procyonis. Comatose experimentally infected squirrel monkey who suffered severe encephalitis with narcolepsy. Baylisascaris procyonis. Comatose experimentally infected squirrel monkey who suffered severe encephalitis with narcolepsy.
 1825 Baylisascaris procyonis. Hemorrhage, hemorrhagic migration tract and macrophage infiltration in cerebrum of an experimentally infected squirrel monkey. Baylisascaris procyonis. Hemorrhage, hemorrhagic migration tract and macrophage infiltration in cerebrum of an experimentally infected squirrel monkey.
 1826 Baylisascaris procyonis. Experimentally infected squirrel monkey with larva in a hemorrhagic migration tract. Baylisascaris procyonis. Experimentally infected squirrel monkey with larva in a hemorrhagic migration tract.
 1827 Baylisascaris procyonis. Experimentally infected squirrel monkey with inflamed migration track in lateral motor area of cervical spinal cord. Baylisascaris procyonis. Experimentally infected squirrel monkey with inflamed migration track in lateral motor area of cervical spinal cord.
 1828 Baylisascaris procyonis. Larval granuloma in the liver of an experimentally infected squirrel monkey. Baylisascaris procyonis. Larval granuloma in the liver of an experimentally infected squirrel monkey.
 1829 Baylisascaris procyonis. Larval granuloma in myocardium of an experimentally infected squirrel monkey. Baylisascaris procyonis. Larval granuloma in myocardium of an experimentally infected squirrel monkey.
 1830 Baylisascaris procyonis. Fundus of a cynomolgus monkey showing inflammatory migratory tracks, sheathing of vessels, and focal hemorrhage 8 days after experimental infection. Baylisascaris procyonis. Fundus of a cynomolgus monkey showing inflammatory migratory tracks, sheathing of vessels, and focal hemorrhage 8 days after experimental infection.
 1831 Baylisascaris procyonis. Larva and migratory tracks in fundus of cynomolgus monkey 11 days after experimental infection. Baylisascaris procyonis. Larva and migratory tracks in fundus of cynomolgus monkey 11 days after experimental infection.
 1832 Baylisascaris procyonis. Larva and migratory tracks in fundus of cynomolgus monkey 11 days after experimental infection. Baylisascaris procyonis. Larva and migratory tracks in fundus of cynomolgus monkey 11 days after experimental infection.
 1833 Baylisascaris procyonis Fundus of a cynomolgus monkey showing focal retinitis and a larva 15 days after experimental infection. Baylisascaris procyonis Fundus of a cynomolgus monkey showing focal retinitis and a larva 15 days after experimental infection.
 1834 Baylisascaris procyonis. Retinal disruption, necrosis, and eosinophilic retinitis in an experimentally infected cynomolgus monkey. Baylisascaris procyonis. Retinal disruption, necrosis, and eosinophilic retinitis in an experimentally infected cynomolgus monkey.
 1835 Baylisascaris procyonis. Retinal necrosis, eosinophilic retinitis and vasculitis in an experimentally infected cynomolgus monkey. Baylisascaris procyonis. Retinal necrosis, eosinophilic retinitis and vasculitis in an experimentally infected cynomolgus monkey.
 1836 Baylisascaris procyonis. Severe retinal necrosis and eosinophilic retinitis in an experimentally infected cynomolgus monkey. Baylisascaris procyonis. Severe retinal necrosis and eosinophilic retinitis in an experimentally infected cynomolgus monkey.
 1837 Baylisascaris procyonis. S ubretinal larva and retinal disruption in an experimentally infected cynomolgus monkey. Baylisascaris procyonis. S ubretinal larva and retinal disruption in an experimentally infected cynomolgus monkey.
 1838 Baylisascaris procyonis. Subretinal larva and outer nuclear layer pyknosis in an experimentally infected cynomolgus monkey. Baylisascaris procyonis. Subretinal larva and outer nuclear layer pyknosis in an experimentally infected cynomolgus monkey.
 1839 Baylisascaris procyonis. Subretinal disruption and necrosis. Larva under inner limiting membrane in an experimentally infected cynomolgus monkey. Baylisascaris procyonis. Subretinal disruption and necrosis. Larva under inner limiting membrane in an experimentally infected cynomolgus monkey.
 1840 Baylisascaris procyonis. Choroidal granuloma in an experimentally infected cynomolgus monkey. Baylisascaris procyonis. Choroidal granuloma in an experimentally infected cynomolgus monkey.
 1841 Baylisascaris procyonis. Subretinal hemorrhage in an experimentally infected squirrel monkey. Baylisascaris procyonis. Subretinal hemorrhage in an experimentally infected squirrel monkey.
 1842 Baylisascaris procyonis. Larva in the inner nerve fiber layer in an experimentally infected squirrel monkey. Baylisascaris procyonis. Larva in the inner nerve fiber layer in an experimentally infected squirrel monkey.
 1843 Baylisascaris procyonis. Larva in the inner nerve fiber layer in an experimentally infected squirrel monkey. Baylisascaris procyonis. Larva in the inner nerve fiber layer in an experimentally infected squirrel monkey.
 1844 Baylisascaris procyonis A two-year old boy died following 14 months of CNS problems. CNS atrophy, sclerosis, gliosis and a larval granuloma in cerebrum are shown. Baylisascaris procyonis A two-year old boy died following 14 months of CNS problems. CNS atrophy, sclerosis, gliosis and a larval granuloma in cerebrum are shown.
 1845 Baylisascaris procyonis Same case. Larval granuloma in brain. Baylisascaris procyonis Same case. Larval granuloma in brain.
 1846 Baylisascaris procyonis Same case. Larval granuloma in brain. Baylisascaris procyonis Same case. Larval granuloma in brain.
 1847 Baylisascaris procyonis Same case. CNS atrophy, sclerosis, and larval granuloma in brain are shown. Baylisascaris procyonis Same case. CNS atrophy, sclerosis, and larval granuloma in brain are shown.
 1848 Baylisascaris procyonis. A one and one half year old boy died after a 3 week bout of CNS disease. Brain shows periventricular necrosis and softening. Baylisascaris procyonis. A one and one half year old boy died after a 3 week bout of CNS disease. Brain shows periventricular necrosis and softening.
 1849 Baylisascaris procyonis. Same case. Multiple Subpleural granulomas in lung. Baylisascaris procyonis. Same case. Multiple Subpleural granulomas in lung.
 1850 Baylisascaris procyonis. Same case. Contrast enhanced CT brain scans show ventricular dilatation, periventricular enhancement and enlargement of cortical sulci. Baylisascaris procyonis. Same case. Contrast enhanced CT brain scans show ventricular dilatation, periventricular enhancement and enlargement of cortical sulci.
 1851 Baylisascaris procyonis. Same case. Contrast enhanced CT brain scans show ventricular dilatation, periventricular enhancement and enlargement of cortical sulci. Baylisascaris procyonis. Same case. Contrast enhanced CT brain scans show ventricular dilatation, periventricular enhancement and enlargement of cortical sulci.
 1852 Baylisascaris procyonis. Same case. Eosinophilic encephalitis. Baylisascaris procyonis. Same case. Eosinophilic encephalitis.
 1853 Baylisascaris procyonis. Same case. Eosinophilic meningitis. Baylisascaris procyonis. Same case. Eosinophilic meningitis.
 1854 Baylisascaris procyonis. Same case. Larva in brain. Baylisascaris procyonis. Same case. Larva in brain.
 1855 Baylisascaris procyonis. Same case. Subpleural pulmonary granuloma with larva. Baylisascaris procyonis. Same case. Subpleural pulmonary granuloma with larva.
 1856 Baylisascarisprocyonis Same case. Mesenteric granuloma with larva. Baylisascarisprocyonis Same case. Mesenteric granuloma with larva.
 1857 Baylisascarisprocyonis Same case. Mesenteric granuloma with larva. Baylisascarisprocyonis Same case. Mesenteric granuloma with larva.
 1858 Baylisascaris procyonis. Same case. Pulmonary granulomas with larvae. Baylisascaris procyonis. Same case. Pulmonary granulomas with larvae.
 1859 Baylisascaris procyonis. Same case. Pulmonary granulomas with larvae. Baylisascaris procyonis. Same case. Pulmonary granulomas with larvae.
 1860 Baylisascaris procyonis. Same case. Subpleural pulmonary granuloma with larva. Baylisascaris procyonis. Same case. Subpleural pulmonary granuloma with larva.
 1861 Baylisascaris procyonis. Same case. Larva in pulmonary granuloma. Baylisascaris procyonis. Same case. Larva in pulmonary granuloma.
 1862 Baylisascaris procyonis. Mouse brain squash preparation shows a larval granuloma 66 days after infection. Baylisascaris procyonis. Mouse brain squash preparation shows a larval granuloma 66 days after infection.
 1863 Toxocara canis Adults in the terminal ileum and caecum. Toxocara canis Adults in the terminal ileum and caecum.
 1864 Toxocara canis Adults in the terminal ileum and caecum. Toxocara canis Adults in the terminal ileum and caecum.
 1865 Taenia pisiformis Armed scolex. Taenia pisiformis Armed scolex.
 1866 Taenia pisiformis. Cysticercus. Taenia pisiformis. Cysticercus.
 1867 Taenia pisiformis Usually the cysticerci of this tapeworm are found in rabbits. Very rarely they may be found in the definitive host (dog). This is such a case with slide (1867) showing gross and slide (1868) the microscopic pathology Taenia pisiformis Usually the cysticerci of this tapeworm are found in rabbits. Very rarely they may be found in the definitive host (dog). This is such a case with slide (1867) showing gross and slide (1868) the microscopic pathology
 1868 Taenia pisiformis Usually the cysticerci of this tapeworm are found in rabbits. Very rarely they may be found in the definitive host (dog). This is such a case with slide (1867) showing gross and slide (1868) the microscopic pathology Taenia pisiformis Usually the cysticerci of this tapeworm are found in rabbits. Very rarely they may be found in the definitive host (dog). This is such a case with slide (1867) showing gross and slide (1868) the microscopic pathology
 1869 Diphyllobothrium latum. Plerocercoids in smelt, Osmerus eperlanus. Diphyllobothrium latum. Plerocercoids in smelt, Osmerus eperlanus.
 1870 Diphyllobothrium latum. Encysted plerocercoids in cherry salmon fillet. Diphyllobothrium latum. Encysted plerocercoids in cherry salmon fillet.
 1871 Diphyllobothrium latum. Live plerocercoids collected from cherry salmon fillet. Diphyllobothrium latum. Live plerocercoids collected from cherry salmon fillet.
 1872 Diphyllobothrium latum. Adult worm (4.25 meters long) discharged from a human volunteer on the 18th day of infection. Diphyllobothrium latum. Adult worm (4.25 meters long) discharged from a human volunteer on the 18th day of infection.
 1873 Diphyllobothrium latum. Two eggs, one undeveloped, the other containing a coracidium. Diphyllobothrium latum. Two eggs, one undeveloped, the other containing a coracidium.
 1874 Simulium ochraceum This vector of onchocerciasi s in Guatemala is shown biting. Simulium ochraceum This vector of onchocerciasi s in Guatemala is shown biting.
 1875 Strongyloides stercoralis Hyperinfection in the colon of an immunosuppressed patient. Strongyloides stercoralis Hyperinfection in the colon of an immunosuppressed patient.
 1876 Trombicula . Skin reaction to a chigger bite of the leg (Missouri). Trombicula . Skin reaction to a chigger bite of the leg (Missouri).
 1877 Trichinella spiralis Unsanitary conditions on a hog farm in Central Indiana where 60% of the 'pigs harbored Trichinella. Trichinella spiralis Unsanitary conditions on a hog farm in Central Indiana where 60% of the 'pigs harbored Trichinella.
 1878 Trichinella spiralis Unsanitary conditions on a hog farm in Central Indiana where 60% of the 'pigs harbored Trichinella. Trichinella spiralis Unsanitary conditions on a hog farm in Central Indiana where 60% of the 'pigs harbored Trichinella.
 1879 Trichinella spiralis Unsanitary conditions on a hog farm in Central Indiana where 60% of the 'pigs harbored Trichinella. Trichinella spiralis Unsanitary conditions on a hog farm in Central Indiana where 60% of the 'pigs harbored Trichinella.
 1880 Trichinella spiralis Unsanitary conditions on a hog farm in Central Indiana where 60% of the 'pigs harbored Trichinella. Trichinella spiralis Unsanitary conditions on a hog farm in Central Indiana where 60% of the 'pigs harbored Trichinella.
 1881 Trichinella spiralis Encysted muscle larvae in a boar from the same farm. Trichinella spiralis Encysted muscle larvae in a boar from the same farm.
 1882 Trichinella spiralis Encysted muscle larvae in a boar from the same farm. Trichinella spiralis Encysted muscle larvae in a boar from the same farm.
 1883 Trichinella spiralis Infected pork sausage which produced human infection. Trichinella spiralis Infected pork sausage which produced human infection.
 1884 Trichinella spiralis Infected pork sausage which produced human infection. Trichinella spiralis Infected pork sausage which produced human infection.
 1885 Cueterebra Ocular myiasis produced by a first stage larva o in the posterior eye chamber of a young male in Tampa, Florida. Cueterebra Ocular myiasis produced by a first stage larva o in the posterior eye chamber of a young male in Tampa, Florida.
 1886 Echinococcus granulosus Formalin fixed, opened Echinococcus cyst in female breast. Echinococcus granulosus Formalin fixed, opened Echinococcus cyst in female breast.
 1887 Echinococcus granulosus. Daughter cysts removed from the mass shown in slide 1886. Echinococcus granulosus. Daughter cysts removed from the mass shown in slide 1886.
 1888 Brugia malayi. Male and female adults in a pulmonary artery of a Mongolian gerbil. Brugia malayi. Male and female adults in a pulmonary artery of a Mongolian gerbil.
 1889 Paragonimus westermani Miracidium. Paragonimus westermani Miracidium.
 1890 Strongyloides stercoralis Formed larva in egg. Strongyloides stercoralis Formed larva in egg.
 1891 Wuchereria bancrofti. Inguinal adenopathy plus enlargement of male genitalia. Wuchereria bancrofti. Inguinal adenopathy plus enlargement of male genitalia.
 1892 Dirofilaria immitis Cross section through adult male and female worms. Dirofilaria immitis Cross section through adult male and female worms.
 1893 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1894 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1895 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1896 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1897 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1898 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1899 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1900 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1901 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1902 Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen. Babesia microti. Giemsa stained slides from a fatal case on Fire Island, N. Y., (1982). The parasitemia is high for human babesiosis. Budding, multi-infected erythrocytes, tetrad formation, band forms, reticulocytosis and clumping of extracellular parasites may be seen.
 1903 Schistosoma. Fallopian tube with granulomata containing parasite eggs. Schistosoma. Fallopian tube with granulomata containing parasite eggs.
 1904 Schistosoma. Fallopian tube with granulomata containing parasite eggs. Schistosoma. Fallopian tube with granulomata containing parasite eggs.
 1905 Schistosoma. Fallopian tube with granulomata containing parasite eggs. Schistosoma. Fallopian tube with granulomata containing parasite eggs.
 1906 Schistosoma. Fallopian tube with granulomata containing parasite eggs. Schistosoma. Fallopian tube with granulomata containing parasite eggs.
 1907 Paragonimus. Adult parasites removed from cavity in cat lung. Paragonimus. Adult parasites removed from cavity in cat lung.
 1908 Schistosoma mansoni. Skin lesions due to extra-genital schistosomiasis. Schistosoma mansoni. Skin lesions due to extra-genital schistosomiasis.
 1909 Angiostrongylus cantonensis. Larva penetrating the arachnoid. Angiostrongylus cantonensis. Larva penetrating the arachnoid.
 1910 Angiostrongylus cantonensis. Chronically inflamed meninges. Angiostrongylus cantonensis. Chronically inflamed meninges.
 1911 Angiostrongylus cantonensis Chronically inflamed choroid plexus. Angiostrongylus cantonensis Chronically inflamed choroid plexus.
 1912 Angiostrongylus cantonensis Ischemic Purkinje cells of the cerebellum. Angiostrongylus cantonensis Ischemic Purkinje cells of the cerebellum.
 1913 Angiostrongylus cantonensis Hemorrhage and inflammation in a cerebellar tonsil. Angiostrongylus cantonensis Hemorrhage and inflammation in a cerebellar tonsil.
 1914 Angiostrongylus cantonensis. Subarachnoid hemorrhage. Angiostrongylus cantonensis. Subarachnoid hemorrhage.
 1915 Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord. Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord.
 1916 Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord. Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord.
 1917 Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord. Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord.
 1918 Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord. Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord.
 1919 Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord. Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord.
 1920 Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord. Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord.
 1921 Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord. Angiostrongylus cantonensis Longitudinal and cross-section of larvae in the spinal cord.
 1922 Echinococcus granulosus. Not all liver cysts are neatly encompassed by the liver. This lobulated mass was cut from the lower edge of a liver. Echinococcus granulosus. Not all liver cysts are neatly encompassed by the liver. This lobulated mass was cut from the lower edge of a liver.
 1923 Lyme disease Rash. The rash usually begins as a red macule at the inoculation site. It expands forming a large annular red bordered lesion with central clearing and inouration. Lyme disease Rash. The rash usually begins as a red macule at the inoculation site. It expands forming a large annular red bordered lesion with central clearing and inouration.
 1924 Ixodes dammini Tick vector of Lyme disease. Ixodes dammini Tick vector of Lyme disease.
 1925 Leishmania Mucocutaneous destruction of hard palate. Peru Leishmania Mucocutaneous destruction of hard palate. Peru
 1926 Trichuris trichiura Endoscopic view of adults attached to colonic mucosa. Trichuris trichiura Endoscopic view of adults attached to colonic mucosa.
 1927 Trypanosoma cruzi. Romana's sign. Trypanosoma cruzi. Romana's sign.
 1928 Trypanosoma cruzi. Inoculation site in a patient with acute Chagas' disease. Trypanosoma cruzi. Inoculation site in a patient with acute Chagas' disease.
 1929 Trypanosoma cruzi. Malignant arrhythmias typical of chronic Chagas' cardiomyopathy. Holter tracing. Trypanosoma cruzi. Malignant arrhythmias typical of chronic Chagas' cardiomyopathy. Holter tracing.
 1930 Schistosoma intercalatum. Egg in stool. Schistosoma intercalatum. Egg in stool.
 1931 Schistosoma intercalatum. Snail vector in Gabon. Schistosoma intercalatum. Snail vector in Gabon.
 1932 Schistosoma intercalatum Rectal biopsy preparation Schistosoma intercalatum Rectal biopsy preparation
 1933 Schistosoma intercalatum Rectal biopsy preparation Schistosoma intercalatum Rectal biopsy preparation
 1934 Schistosoma intercalatum Rectal biopsy preparation Schistosoma intercalatum Rectal biopsy preparation
 1935 Multiceps. Opened cysts showing multiple protoscolices. Multiceps Frozen section at surgery. Multiceps. Opened cysts showing multiple protoscolices. Multiceps Frozen section at surgery.
 1936 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1937 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1938 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1939 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1940 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1941 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1942 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1943 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1944 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1945 Muiticeps Multiple sections showing membranes, suckers and hooks. Muiticeps Multiple sections showing membranes, suckers and hooks.
 1946 Fasciola hepatica SEM studies of eggs. Fasciola hepatica SEM studies of eggs.
 1947 Fasciola hepatica SEM studies of eggs. Fasciola hepatica SEM studies of eggs.
 1948 Fasciola hepatica SEM studies of eggs. Fasciola hepatica SEM studies of eggs.
 1949 Toxocara canis. Large granulomas projecting from the renal cortex of a naturally infected cat. Toxocara canis. Large granulomas projecting from the renal cortex of a naturally infected cat.
 1950 Toxocara canis. Experimental cat infections. Five thousand infective eggs given peros. Numerous large cortical granulomas on the kidney 36 days after infection. Toxocara canis. Experimental cat infections. Five thousand infective eggs given peros. Numerous large cortical granulomas on the kidney 36 days after infection.
 1951 Toxocara canis. Experimental cat infection. Five thousand  infective eggs given. Numerous granulomas are present in the liver parenchyma 25 days after infection. Toxocara canis. Experimental cat infection. Five thousand infective eggs given. Numerous granulomas are present in the liver parenchyma 25 days after infection.
 1952 Toxocara canis Typical hepatic granuloma containing a larva. Natural infection in a cat. Toxocara canis Typical hepatic granuloma containing a larva. Natural infection in a cat.
 1953 Toxocara canis High power view of a cat liver granuloma with larva surrounded by eosinophils. Toxocara canis High power view of a cat liver granuloma with larva surrounded by eosinophils.
 1954 Toxocara canis. Large eosinophils-rich granuloma occupying almost the entire width of the right ventricular free wall. Naturally infected cat. Hematoxylin-eosin stain. Toxocara canis. Large eosinophils-rich granuloma occupying almost the entire width of the right ventricular free wall. Naturally infected cat. Hematoxylin-eosin stain.
 1955 Toxocara canis. Mouse, BALE/c. Experimental infection, acute, with 5000 infective T. canis eggs. Liver. At 48 hours PI most larvae are in the liver where they cause acute hepatocellular  necrosis and neutrophil infiltration. Hematoxylin-eosin stain. Toxocara canis. Mouse, BALE/c. Experimental infection, acute, with 5000 infective T. canis eggs. Liver. At 48 hours PI most larvae are in the liver where they cause acute hepatocellular necrosis and neutrophil infiltration. Hematoxylin-eosin stain.
 1956 Toxocara canis. Mouse, BALE/c. Experimental infection as in slidf 1955. Liver. At 48 hours P1 this coiled larva, seen in both longitudinal and cross section, is not directly associated with the inflammatory response. Hematoxylin-stain. Toxocara canis. Mouse, BALE/c. Experimental infection as in slidf 1955. Liver. At 48 hours P1 this coiled larva, seen in both longitudinal and cross section, is not directly associated with the inflammatory response. Hematoxylin-stain.
 1957 Toxocara canis. Mouse, BALE/c. Experimental infection, chronic, with 500 infective T. canis eggs per os. Liver. At 8 months P1 this coiled larva is present within a large, well-organized fibrotic granuloma. Hematoxylin-eosin stain. Toxocara canis. Mouse, BALE/c. Experimental infection, chronic, with 500 infective T. canis eggs per os. Liver. At 8 months P1 this coiled larva is present within a large, well-organized fibrotic granuloma. Hematoxylin-eosin stain.
 1958 Toxocara canis Mouse, BALE/c. Experimental infection as in slide 1957. Well-organized granuloma containing a coiled larva presents within skeletal muscle at 8 months P1.  Hematoxylin-eosin stain. Toxocara canis Mouse, BALE/c. Experimental infection as in slide 1957. Well-organized granuloma containing a coiled larva presents within skeletal muscle at 8 months P1. Hematoxylin-eosin stain.
 1959 Toxocara canis. Mouse, BALE/c. Experimental infection as in 1955. Eye. At 15 days P1, a coiled larva can be seen within the inner granular layer of the retina. Note the lack of inflammatory response.Hematoxylin-eosin stain. Toxocara canis. Mouse, BALE/c. Experimental infection as in 1955. Eye. At 15 days P1, a coiled larva can be seen within the inner granular layer of the retina. Note the lack of inflammatory response.Hematoxylin-eosin stain.
 1960 Toxocara canis. Mouse, BALB/c Experimental infection as in slide 1957. At 8 months P1, a larva is present within the granular layer of the cerebellum. Note the lack of inflammatory reaction. Hematoxylin-eosin stain. Toxocara canis. Mouse, BALB/c Experimental infection as in slide 1957. At 8 months P1, a larva is present within the granular layer of the cerebellum. Note the lack of inflammatory reaction. Hematoxylin-eosin stain.
 1961 Toxocara canis. Adults emerging from a cut made in a puppy small bowel at autopsy. Toxocara canis. Adults emerging from a cut made in a puppy small bowel at autopsy.
 1962 Toxocara canis Egg in a dog stool. Toxocara canis Egg in a dog stool.
 1963 Toxocara canis Retinal detachment in a human eye due to Toxocara canis larvae. Toxocara canis Retinal detachment in a human eye due to Toxocara canis larvae.
 1964 Toxocara canis Retinal detachment in a human eye due to Toxocara canis larvae. Toxocara canis Retinal detachment in a human eye due to Toxocara canis larvae.
 1965 Toxocara canis. Granuloma in detached human retina (due to ocular larva migrans). Toxocara canis. Granuloma in detached human retina (due to ocular larva migrans).
 1966 Toxocara canis. Larva in a granuloma in a detached human retina. Toxocara canis. Larva in a granuloma in a detached human retina.
 1967 Toxocara canis Ocular larva migrans. Lymphatic perivascular cuff in human retina. Toxocara canis Ocular larva migrans. Lymphatic perivascular cuff in human retina.
 1968 Toxocara canis. Sections through larvae in retinal granulomas (human case). Toxocara canis. Sections through larvae in retinal granulomas (human case).
 1969 Toxocara canis. Sections through larvae in retinal granulomas (human case). Toxocara canis. Sections through larvae in retinal granulomas (human case).
 1970 Toxocara canis Adults in opened dog bowel. Toxocara canis Adults in opened dog bowel.
 1971 Toxocara canis. Anterior end of an adult. . Toxocara canis. Anterior end of an adult. .
 1972 Ascaris lumbricoides. Surgical specimen. Gangrenous bowel removed from patient suffering intestinal obstruction. Ascaris lumbricoides. Surgical specimen. Gangrenous bowel removed from patient suffering intestinal obstruction.
 1973 Ascaris lumbricoides. Adult in human right kidney found at post mortem of a child in Papua, New Guinea. Ascaris lumbricoides. Adult in human right kidney found at post mortem of a child in Papua, New Guinea.
 1974 Ascaris (suum?). Adult ascarids found in treated sewage residue probably as a result of illegal dumping by an abattoir. Ascaris (suum?). Adult ascarids found in treated sewage residue probably as a result of illegal dumping by an abattoir.
 1975 Ascaris. Development and hatching of larva.. Ascaris. Development and hatching of larva..
 1976 Ascaris. Development and hatching of larva.. Ascaris. Development and hatching of larva..
 1977 Ascaris. Development and hatching of larva.. Ascaris. Development and hatching of larva..
 1978 Ascaris. Development and hatching of larva.. Ascaris. Development and hatching of larva..
 1979 Ascaris. Development and hatching of larva.. Ascaris. Development and hatching of larva..
 1980 Ascaris. Development and hatching of larva.. Ascaris. Development and hatching of larva..
 1981 Ascaris. Development and hatching of larva.. Ascaris. Development and hatching of larva..
 1982 Ascaris. Development and hatching of larva.. Ascaris. Development and hatching of larva..
 1983 Coenurus. Whole mount . From 2 year old chinchilla. Located in intramuscular fascia of hind leg. Coenurus. Whole mount . From 2 year old chinchilla. Located in intramuscular fascia of hind leg.
 1984 Nanophyltes. Adult, whole mount. Nanophyltes. Adult, whole mount.
 1985 Musca domestics. Flies on a cooking utensil. Musca domestics. Flies on a cooking utensil.
 1986 Musca domestica Flies on sugar in a cooking utensil. Musca domestica Flies on sugar in a cooking utensil.
 1987 Mansonia Pupa fixed to a plant. Mansonia Pupa fixed to a plant.
 1988 Mansonia Pupa free of plant. Mansonia Pupa free of plant.
 1989 Mansonia, Eichhornia crassipes and Pistia stratiotes in a Mansonia breeding place, Vietnam. Mansonia, Eichhornia crassipes and Pistia stratiotes in a Mansonia breeding place, Vietnam.
 1990 Latrine. Built over a fish breeding stream. Vietnam. Latrine. Built over a fish breeding stream. Vietnam.
 1991 Water A man drinking polluted water. Ethiopia. Water A man drinking polluted water. Ethiopia.
 1992 Aedes vexans Larva and pupa in water. Aedes vexans Larva and pupa in water.
 1993 Aedes vigilax Mangrove, a breeding place for a filariasis vector In New Caledonia. Aedes vigilax Mangrove, a breeding place for a filariasis vector In New Caledonia.
 1994 Aedes Taro plant, a breeding place for dengue vector in NewCaledonia. Aedes Taro plant, a breeding place for dengue vector in NewCaledonia.
 1995 Aedes aegypti Holes in the trunk of a palm tree serve as a breeding site for this mosquito. Madagascar. Aedes aegypti Holes in the trunk of a palm tree serve as a breeding site for this mosquito. Madagascar.
 1996 Aedes Coconut shells serve as a mosquito breeding place. Vietnam. Aedes Coconut shells serve as a mosquito breeding place. Vietnam.
 1997 Taenia. Proglottid in appendix. Taenia. Proglottid in appendix.
 1998 Schistosoma haematobium Eggs in a rectal biopsy. Schistosoma haematobium Eggs in a rectal biopsy.
 1999 Onchocerca volvulus. A single microfilaria is present in the anterior eye chamber of a Liberian male. Onchocerca volvulus. A single microfilaria is present in the anterior eye chamber of a Liberian male.
 2000 Onchocerca volvulus. Many microfilariae in the anterior eye chamber of a Liberian male. Onchocerca volvulus. Many microfilariae in the anterior eye chamber of a Liberian male.
 2001 Onchocerca volvulus. Photographic montage of a 23 year old Ghanaian male showing extensive chorioretinal atrophy and optic atrophy. Onchocerca volvulus. Photographic montage of a 23 year old Ghanaian male showing extensive chorioretinal atrophy and optic atrophy.
 2002 Onchocerca volvulus. Photographic montage of a 33 year old Ghanaian male showing extensive chorioretinal atrophy .and some retinal fibrosis. Onchocerca volvulus. Photographic montage of a 33 year old Ghanaian male showing extensive chorioretinal atrophy .and some retinal fibrosis.
 2003 Onchocerca volvulus. Puncture keratitis in a Liberian female. Onchocerca volvulus. Puncture keratitis in a Liberian female.
 2004 Onchocerca volvulus. Early scierosing keratitis with the characteristic pear shaped deformity, retropupillary fibrosis plus spontaneous subluxation of the cataractous lens. Forty-four year of Mexican male. Onchocerca volvulus. Early scierosing keratitis with the characteristic pear shaped deformity, retropupillary fibrosis plus spontaneous subluxation of the cataractous lens. Forty-four year of Mexican male.
 2005 Onchocerca volvulus. Advanced sclerosing keratitis in a 52 year old Guatemalan male. The inferior two thirds of the cornea are opaque and vascularized. There is a pigmentation line extending across the limbus onto the cornea. Onchocerca volvulus. Advanced sclerosing keratitis in a 52 year old Guatemalan male. The inferior two thirds of the cornea are opaque and vascularized. There is a pigmentation line extending across the limbus onto the cornea.
 2006 Onchocerca volvulus. Characteristic leopard skin hyper and hypopigmentation in the skin of a Liberian male. Onchocerca volvulus. Characteristic leopard skin hyper and hypopigmentation in the skin of a Liberian male.
 2007 Caterpillar Rash induced by migration of a caterpillar over the skin of a missionary physician in Liberia. The caterpillars usually fall from trees. Caterpillar Rash induced by migration of a caterpillar over the skin of a missionary physician in Liberia. The caterpillars usually fall from trees.
 2008 Myiasis. Ulcer from which a maggot was removed. Liberia. Myiasis. Ulcer from which a maggot was removed. Liberia.
 2009 Entamoeba histolytica. Scarification by native practitioners ove an amoebic liver abscess. Entamoeba histolytica. Scarification by native practitioners ove an amoebic liver abscess.
 2010 Entamoeba histolytica Aspiration of an amoebic abscess in same patient. Entamoeba histolytica Aspiration of an amoebic abscess in same patient.
 2011 Echinostoma ilocanum. Adult, whole mount. Echinostoma ilocanum. Adult, whole mount.
 2012 Echinostoma ilocanum. Metacercaria from snail. Echinostoma ilocanum. Metacercaria from snail.
 2013 Echinostomailocanum Snail, Pila luzonica, intermediate host. Echinostomailocanum Snail, Pila luzonica, intermediate host.
 2014 Gasterophilus intestinalis. Maggot posterior spiracle. Gasterophilus intestinalis. Maggot posterior spiracle.
 2015 Sarcophaga. Maggot, posterior spiracle. Sarcophaga. Maggot, posterior spiracle.
 2016 Oestrus ovis. Maggot, posterior spiracle. Oestrus ovis. Maggot, posterior spiracle.
 2017 Callitroga hominivorax. Maggot's posterior spiracle. Callitroga hominivorax. Maggot's posterior spiracle.
 2018 Cimex lectularis. Adult whole mount. Cimex lectularis. Adult whole mount.
 2019 Phylometra Gross views of hand with implanted nematode in preexisting puncture wound. Phylometra Gross views of hand with implanted nematode in preexisting puncture wound.
 2020 Phylometra Gross views of hand with implanted nematode in preexisting puncture wound. Phylometra Gross views of hand with implanted nematode in preexisting puncture wound.
 2021 Dirofilaria immitis Adult female, Aedes trivittatus, natural vector of Dirofilaria immitis in much of the midwestern United States. Dirofilaria immitis Adult female, Aedes trivittatus, natural vector of Dirofilaria immitis in much of the midwestern United States.
 2022 Dirofilaria immitis Adult female, Aedes trivittatus, natural vector of Dirofilaria immitis in much of the midwestern United States. Dirofilaria immitis Adult female, Aedes trivittatus, natural vector of Dirofilaria immitis in much of the midwestern United States.
 2023 Dirofilaria immitis. H & E-stained section of a first-stage larva within the Malpighian tubules of a mosquito. Dirofilaria immitis. H & E-stained section of a first-stage larva within the Malpighian tubules of a mosquito.
 2024 Dirofilariaimmitis. Phase contrast micrographs of developing larvae within the Malpighian tubules of A, trivittatus. Dirofilariaimmitis. Phase contrast micrographs of developing larvae within the Malpighian tubules of A, trivittatus.
 2025 Dirofilariaimmitis. Phase contrast micrographs of developing larvae within the Malpighian tubules of A, trivittatus. Dirofilariaimmitis. Phase contrast micrographs of developing larvae within the Malpighian tubules of A, trivittatus.
 2026 Dirofilariaimmitis. Phase contrast micrographs of developing larvae within the Malpighian tubules of A, trivittatus. Dirofilariaimmitis. Phase contrast micrographs of developing larvae within the Malpighian tubules of A, trivittatus.
 2027 Dirofilaria immitis. Cross section of infective, third-stage larvae within the labium of Aedes aegypti (Liverpool strain). Dirofilaria immitis. Cross section of infective, third-stage larvae within the labium of Aedes aegypti (Liverpool strain).
 2028 Dirofilaria immitis. Third-stage larva leaving A. aegypti labium. Dirofilaria immitis. Third-stage larva leaving A. aegypti labium.
 2029 Dirofilaria immitis. Posterior end of an adult male. Dirofilaria immitis. Posterior end of an adult male.
 2030 Dirofilaria immitis Microfilariae melanized within the Malpighian tubules of A. trivittatus. Dirofilaria immitis Microfilariae melanized within the Malpighian tubules of A. trivittatus.
 2031 Dirofilaria immitis Microfilariae melanized within the Malpighian tubules of A. trivittatus. Dirofilaria immitis Microfilariae melanized within the Malpighian tubules of A. trivittatus.
 2032 Dirofillaria immitis Microfilaria removed from the hemocoel of A. aegypti at 3 days following intrathoracic inoculation. Note the deposition of protein-polyphenol complexes around a portion of the parasite and the numerous hemocytes forming the encapsulation reaction. Dirofillaria immitis Microfilaria removed from the hemocoel of A. aegypti at 3 days following intrathoracic inoculation. Note the deposition of protein-polyphenol complexes around a portion of the parasite and the numerous hemocytes forming the encapsulation reaction.
 2033 Dirofilaria immitis. Scanning electron micrograph of a normal micro filaria. Dirofilaria immitis. Scanning electron micrograph of a normal micro filaria.
 2034 Dirofilaria immitis SEM showing melanin deposition around a microfilaria following inoculation into A.trivittatus. Dirofilaria immitis SEM showing melanin deposition around a microfilaria following inoculation into A.trivittatus.
 2035 Dirofilarila immitis Transmission electron micrograph of a hemocyte during an encapsulation reaction against a microfilaria in A. trivittatus.Note the microfilaria with melanin deposits on the cuticle in the lower left corner. Dirofilarila immitis Transmission electron micrograph of a hemocyte during an encapsulation reaction against a microfilaria in A. trivittatus.Note the microfilaria with melanin deposits on the cuticle in the lower left corner.
 2036 Brugia pahangi. Microfilaria beginning to penetrate the midgut epithelium of Aedes aegypti (interference contrast). Brugia pahangi. Microfilaria beginning to penetrate the midgut epithelium of Aedes aegypti (interference contrast).
 2037 Brugia pahangi. Microfilaria within the blood meal in the midgut of A. aegypti (interference contrast). Brugia pahangi. Microfilaria within the blood meal in the midgut of A. aegypti (interference contrast).
 2038 Brugia pahangi. Scanning electron micrographs of microfilariae penetrating the midgut of A. aegypti. View is from the hemocoel side of the midgut. It should be noted that microfilariae usually retain their sheaths during penetration Brugia pahangi. Scanning electron micrographs of microfilariae penetrating the midgut of A. aegypti. View is from the hemocoel side of the midgut. It should be noted that microfilariae usually retain their sheaths during penetration
 2039 Brugia pahangi. Scanning electron micrographs of microfilariae penetrating the midgut of A. aegypti. View is from the hemocoel side of the midgut. It should be noted that microfilariae usually retain their sheaths during penetration Brugia pahangi. Scanning electron micrographs of microfilariae penetrating the midgut of A. aegypti. View is from the hemocoel side of the midgut. It should be noted that microfilariae usually retain their sheaths during penetration
 2040 Brugia pahangi. Scanning electron micrographs of microfilariae penetrating the midgut of A. aegypti. View is from the hemocoel side of the midgut. It should be noted that microfilariae usually retain their sheaths during penetration Brugia pahangi. Scanning electron micrographs of microfilariae penetrating the midgut of A. aegypti. View is from the hemocoel side of the midgut. It should be noted that microfilariae usually retain their sheaths during penetration
 2041 Plasmodium kempi A parasite of wild turkeys. Oocysts of the midgut of the mosquito, Culex pipiens pipiens. Plasmodium kempi A parasite of wild turkeys. Oocysts of the midgut of the mosquito, Culex pipiens pipiens.
 2042 Plasmodium kempi A parasite of wild turkeys. Oocysts of the midgut of the mosquito, Culex pipiens pipiens. Plasmodium kempi A parasite of wild turkeys. Oocysts of the midgut of the mosquito, Culex pipiens pipiens.
 2043 Plasmodium kempi A parasite of wild turkeys. Oocysts of the midgut of the mosquito, Culex pipiens pipiens. Plasmodium kempi A parasite of wild turkeys. Oocysts of the midgut of the mosquito, Culex pipiens pipiens.
 2044 Plasmodium kempi. Oocysts and sporozoites on and near the midgut of C ulex pipiens pipiens. Plasmodium kempi. Oocysts and sporozoites on and near the midgut of C ulex pipiens pipiens.
 2045 Plasmodium kempi. Sporozoites near the dissected salivary glands of Culex pipiens pipiens. Plasmodium kempi. Sporozoites near the dissected salivary glands of Culex pipiens pipiens.
 2046 Schistosomatium douthittii (lateral to medial sequence). Schistosomatium douthittii (lateral to medial sequence).
 2047 Schistosomatium douthitti. Miracidia penetrating the esophageal wall of the snail intermediate host, Lymnaea catascopium. Schistosomatium douthitti. Miracidia penetrating the esophageal wall of the snail intermediate host, Lymnaea catascopium.
 2048 Schistosomatium douthitti. Daughter sporocysts within mother sporocysts in infected Lymnaea catascopium. Schistosomatium douthitti. Daughter sporocysts within mother sporocysts in infected Lymnaea catascopium.
 2049 Schistosomatium douthitti. Daughter sporocysts containing cercariae. Schistosomatium douthitti. Daughter sporocysts containing cercariae.
 2050 Schistosomatium douthitti. Daughter sporocysts containing cercariae. Schistosomatium douthitti. Daughter sporocysts containing cercariae.
 2051 Demodex canis. Demodectic mange in a dog. Demodex canis. Demodectic mange in a dog.
 2052 Mesocestoides. Tetrathyridia in abdomen of guinea pig. Mesocestoides. Tetrathyridia in abdomen of guinea pig.
 2053 Mesocestoides. Tetrathyridia in abdomen of guinea pig. Mesocestoides. Tetrathyridia in abdomen of guinea pig.
 2054 Taenia saginata Cysticerci in beef heart. Taenia saginata Cysticerci in beef heart.
 2055 Taenia saginata Cysticerci in beef heart. Taenia saginata Cysticerci in beef heart.
 2056 Taenia saginata. Cysticerci in beef voluntary muscle. Taenia saginata. Cysticerci in beef voluntary muscle.
 2057 Taenia saginata. Multiple cysticerci in experimental infection. Taenia saginata. Multiple cysticerci in experimental infection.
 2058 Taenia saginata Multiple cysticerci digested free of muscle. Taenia saginata Multiple cysticerci digested free of muscle.
 2059 Taenia saginata Multiple cysticerci digested free of muscle. Taenia saginata Multiple cysticerci digested free of muscle.
 2060 Taenia pisiformis Unstained and stained proglottids.