Evaluation of two Methods for the Detection of Schistosoma mansoni Cercariae Shed by Biomphalaria Glabrata

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  • Tropical Disease Section, NCDC, San Juan, Puerto Rico 00902

A simple sedimentation technique for detecting cercariae of Schistosoma mansoni shed by infected snails proved as reliable as a more complicated filtration technique, both in the laboratory and in the field. It was therefore considered suitable for routine use in a schistosomiasis control program in Puerto Rico and has been used satisfactorily for more than a year.