142 Trematode Infections
Trematodes or flukes are flatworms of the class Trematoda of the phylum Platyhelminthes. They have complex life cycles that usually involve a snail as an intermediate host. The definitive host that harbors the adult worms, generally a mammal, acquires the parasite by ingesting an encysted form in a second intermediate host or on vegetation.
Many species can infect human beings, but most of these are normally resident in other mammals, and humans are just accidental hosts.K. David Patterson
Bibliography
Goldsmid, J. M. 1975. Ecological and cultural aspects of human trematodiasis (excluding schistosomiasis) in Africa. CentralAfricanJournal OfMedicine 21: 49-53.
Healy, G. R. 1970. Trematodes transmitted to man by fish, frogs, and Crustacea. Journal of Wildlife Diseases 6: 255-61.
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