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Parasitol Today. 1993 Aug;9(8):305-7.

A pocket chart to estimate true Schistosoma mansoni prevalences.

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  • 1Centre for Decision Sciences in Tropical Disease Control, Department of Public Health, Erasmus University Rotterdam, PO Box 1738, 3000 DR Rotterdam, The Netherlands.


In a recent paper, Sake de Vlas and Bruno Gryseels have explored the extent and implications of the underestimation of Schistosoma mansoni prevalences, as measured by faecal screening. Together with Gernt van Oortmorssen, Anton Polderman and Dik Habbema, they now present a practical and generally applicable chart to infer 'true' prevalences from simple egg count surveys.


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