Trematodes and Cestodes
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Definitive host of Schistosomes | show 🗑
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Intermediate host of Schistosomes | show 🗑
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Where do adult Schistosomes inhabit in the human body? | show 🗑
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show | (1) Schistosoma mansoni (2) Schistosoma japonicum (3) Schistosoma haematobium (4) Schistosoma mekongii (5) Schistosoma intercalatum (6) Schistosoma malayi
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Geographic distribution of Schistosoma mansoni | show 🗑
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Geographic distribution of Schistosoma japonicum | show 🗑
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show | Africa, Middle East
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Geographic distribution of Schistosoma mekongii | show 🗑
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show | West and Central Africa
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show | Penang Peninsula and Malaysia
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show | Sub-Saharan Africa
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show | True. Infections in the US cannot be transmitted due to lack of appropriate snail species.
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(T or F) Most Schistosomiasis infections are asymptomatic. | show 🗑
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show | Clinical presentation of Schistosomiasis
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show | (1) Dermatitis (Swimmer's itch) (2) Acute schistosomiasis (Katayama fever) (3) Chronic Schistosomiasis
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show | Dermatitis (Swimmer's itch)
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show | Acute schistosomiasis or Katayama fever
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Most common signs and symptoms of Acute schistosomiasis or Katayama fever | show 🗑
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show | Bladder and Ureters
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A Schistosomiasis infection syndrome associated with mature worms and heavy egg deposition. The syndrome is characterized by granuloma formation, most commonly in the liver and intestines. | show 🗑
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show | (1) Fatigue (2) Abdominal pain (3) Diarrhea or Dysentery (4) Heptosplenomegaly (5) Hematuria or Hematemesis
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show | Granulomatous response in the liver leading to continuous fibrosis
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Type of samples needed for microscopic detection of Schistosomiasis eggs | show 🗑
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Diagnosis of Schistosomiasis Infection | show 🗑
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show | Praziquantel
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Clinical workup of confirmed Schistosomiasis infection | show 🗑
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A parasite of fish-eating mammals in the Far East. Humans become infected by consuming under cooked, pickled, or raw fish. Infection associated with increased incidence of cholagiocarcinoma. | show 🗑
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show | Snails
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Clinical symptoms of Clonorchiasis | show 🗑
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show | Adult Clonarchis sinensis worms inhabit the bile ducts causing localized obstruction and thickening of the bile duct walls. This results in cholangitis and cholangiohepatitis.
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show | Praziquantel
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show | Opisthorchiasis
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Geographic distribuation of Opistrhochis felineus | show 🗑
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Geographic distribution of Opistrhochis viverrini | show 🗑
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Geographic distribution of Fasciola hepatica | show 🗑
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show | Fascioliasis hepatica
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Natural hosts of Fasciola hepatica | show 🗑
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Clinical signs/symptoms of Fascioliasis | show 🗑
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show | Triclabendazole
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Common signs/symptoms of intestinal fluke infection | show 🗑
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Intestinal fluke found in Southeast Asia and the Far East. Its metacercariae encyst on aquatic plants | show 🗑
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show | Heterophyes heterophyes
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Geographic distribution of Paragonimus westermani | show 🗑
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show | Paragonimus westermani
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show | (1) Eosinophilia (2) Productive cough with brownish sputum (3) Intermittent hemoptysis (4) Chronic bronchitis (5) Pleuritic chest pain
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Treatment of choice for Paragonimiasis | show 🗑
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show | Dying worms may cause seizures or other neurological complications with neuroparagnimiasis.
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show | Head of a cestode (tapeworm)
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Strobila | show 🗑
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show | Intermediate host: cattle Definitive host: human
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Intermediate and definitive host of Taenia solium | show 🗑
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show | Intermediate host: Copepods then fish Definitive host: humans
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show | Intermediate host: Humans Definitive host: Humans
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show | Intermediate host: Sheep, cattle, humans Definitive host: Dog
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Intermediate and definitive host of Echinococcus multilocularis | show 🗑
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show | Central Asia, Near East, Central and South America
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show | Humans infected after consumption of under cooked beef with Taenia saginata cysts.
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show | (1) Mild abdominal cramps (2) Malaise
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show | Praziquantel or niclosamide
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show | Stool examination for several days for evidence of Taenia saginata eggs and proglottids.
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show | Mexico, Central and South America, Africa, Southeast Asia, India, Philippines, and Southern Europe
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Mode of human tapeowrm infection by Taenia solium | show 🗑
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Mode of cysticercosis infection | show 🗑
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The most common parasitic disease of CNS characterized by seizures, hydrocephalus, parses, meningitis, mental deterioration, and coma. | show 🗑
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show | Radiological evidence of cysts
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Treatment of choice of Taenia solium tapeworm infection | show 🗑
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Treatment options for Cysticercosis | show 🗑
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show | False. Intraocular cysticercosis should not be treated with drugs.
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show | Europe, North America, Siberia, Japan and Chile
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Cestode infection resulting from ingestion of under cooked fish with cysts. Symptoms include abdominal discomfort, salt craving, and diarrhea. May also cause B12 deficiency anemia. | show 🗑
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Diagnosis of Diphyllobothrium latum tapeworm infection | show 🗑
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show | Praziquantel or niclosamide and Vitamin B12 supplements
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show | Asia, Southern and Eastern Euorpe, Central and South America, and Africa
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show | (1) Human to human (2) Fecal-oral or autoinfection
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show | Stool examination for Hymenolepsis nana eggs
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Treatment of choice for Hymenolepsis nana tapeworm infection | show 🗑
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Mechanism of human infection by Echinococcosis | show 🗑
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Most common anatomical sites of hydatid cysts of Echinococcus granulosus | show 🗑
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show | (1) Mass effects due to enlargin cysts (2) Bacterial infections secondary to obstruction (3) Allergic reaction ot parasite antigens
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Where do new Echinococcus granulosus larvae (scolices) develop? | show 🗑
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Treatment of choice for Hydatid cyst disease | show 🗑
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show | Europe, Asia, and North America
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show | Cysts are usually found in the liver.
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show | Surgical removal and adjunct albendazole therapy
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