Parasitic Diseases, Trematodes (Flukes)

Animals Involved

Cats, dogs, foxes, wolves, cattle, other mammals, fish­eating birds are definitive hosts (host varies with species of parasite); fish (and snails) are intermediate hosts

Known Distributions

Middle East (especially Nile delta), Turkey, Asia

Probable Means of Spreading

Ingestion of undercooked fish containing encysted larvae

Clinical Manifestations in People

Diarrhea with mucus, colicky pain; heart or CNS involvement possible; severity of signs may vary with species

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