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Intestinal flukes (Fasciolopsiasis (Damage to intestinal mucosa by adults,…
Intestinal flukes
Fasciolopsiasis
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Inflammation, ulceration and mucous secretion at site of intestine attachment
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Malabsorption leading to protein loss, impaired vitamin B12 absorption
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Trematodes
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Definitive hosts-mammals, humans and animals
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Echinostomes
Echinostoma malayanum
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Adult worms located in the small intestine where they attach to the mucous membrane by the anterior end
life cycle
Fascilopsis buski
- infections occurs as ingestion of metacercaria with raw freshaquatic vegetation
- excystation of metacercariae occurs in duodenum , attach to the wall of small intestine and develop into adult
- adult worms release unembryonated eggs which are passed in feces
- eggs develop into larvae (miracidium) in water and enter snail
- miracidium develops through stages of sporocyst and develop into cercariae
- cercariae escape from snail in water and encyst on aquatic plants and become metacercariae