Trials of ecological and chemical measures for the control of Schistosoma haematobium transmission in a Volta Lake village.

摘要: Abstract Urinary schistosomiasis is highly prevalent along the shores of Volta Lake in Ghana, where transmission occurs focally man—water contact sites. The intermediate host, Bulinus truncatus rohlfsi, prefers to harbour Ceratophyllum, a common aquatic weed lake. Removal this reduced density both infected and uninfected snails, but not sufficiently interrupt transmission. Niclosamide was applied at 1, 0.7, 0.5 mg/l combination with removal five water sites December, January, February, respectively. Plastic sheets were used isolate treated from main body Snail surveys carried out short intervals assess effectiveness these intervention measures. Niclosamide after effective killing snails. overall results indicate that snail control entire lake shore impossible focal cercarial attainable shows promise.