Determination and Quantification of Schistosoma mansoni Cercarial Emergence from Biomphalaria glabrata Snails

Living and fixed samples of Schistosoma mansoni–infected Biomphalaria glabrata snails were used to determine the relative contributions of different snail tissues to cercarial emergence (shedding). Three methods of observations were employed: (1) direct microscopical observations of shedding snails;...

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