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Experimental transmission of Schistosoma mansoni in brackish waters*

Published online by Cambridge University Press:  06 April 2009

Eli Chernin  and
Carol Bower
Eli Chernin
Affiliation:
Department of Tropical Public Health, Harvard School of Public Health, Boston, Mass. 02115, U.S.A.
Carol Bower
Affiliation:
Department of Tropical Public Health, Harvard School of Public Health, Boston, Mass. 02115, U.S.A.
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Extract

In the laboratory, transmission of Schistosoma mansoni to and from Biomphalaria glabrata can occur in artificial sea water at or below a concentration of 12-5%. Miracidia can also emerge and infect snails in 25 % sea water, but this concentration is inimical to the survival of the snails or their eggs. The parasite thus appears to be better adapted to brackish water than is the intermediate host. Epidemiological studies are needed to assess the limits imposed by brackish waters on the natural transmission of schistosomiasis.

Type
Research Article
Information
Parasitology , Volume 63 , Issue 1 , August 1971 , pp. 31 - 36
Copyright
Copyright © Cambridge University Press 1971

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