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Am. J. Trop. Med. Hyg., 28(5), 1979, pp. 916-917
Copyright © 1979 by The American Society of Tropical Medicine and Hygiene

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Biological Control of Schistosome Transmission in Flowing Water Habitats

William R. Jobin AND Angel Laracuente
Center for Energy and Environment Research, Caparra Heights Station, San Juan, 00935, Puerto Rico

Marisa cornuarietis was evaluated in Puerto Rico for control of schistosome transmission in flowing water. A population of Biomphalaria glabrata and their schistosome infections disappeared after introduction of 20,000 M. cornuarietis to an endemic stream, while in nearby untreated streams the B. glabrata population remained stable and the schistosome prevalence increased. This method cost U.S. $0.10 per capita for over a year of protection, 5%–10% of the cost of chemical control.

Accepted for publication April 28, 1979.






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Copyright © 1979 by the American Society of Tropical Medicine and Hygiene.