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Diphyllobothriasis and sparganosis 

Diphyllobothriasis and sparganosis
Diphyllobothriasis and sparganosis

David I. Grove



Infections with various species of broad tapeworms are being increasingly recognized as fresh or frozen fish are being transported around the world for consumption in sushi and sashimi.

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date: 15 October 2021

Diphyllobothriasis—procercoid larvae of Diphyllobothrium latum develop in the gut of people infected by eating undercooked fish. Adult worms cause mild gastrointestinal symptoms and urticaria, and compete with the host for vitamin B12, occasionally leading to pernicious anaemia. Diagnosis is by finding characteristic ova in the stool. Treatment is with niclosamide or praziquantel....

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