Importance of Bulinus Globosus Snails in the Transmission of Urinary Schistosomiasis in Eight Villages in Southern Ghana.

Abstract

Snail survey was carried OUI al water contact siles (WCSs) of 8 villages in southern Ghana 10 establish freshwater snails responsible for schistosomiasis transmission in the area. Bulinus globosus, one of the intermediate host snails of Schistosoma haematobium was found at the WCSs in all 8 villages although those infected were identified at sites in 5 of the villages. The snails were confined to the Densu river itself, its tributaries (streams) and ponds. These snails were found during the minor rainy season. at the beginning of and during the dry season. They were found to be focal in distribution. Also found in the Densu river and the ponds were uninfected Biomphalaria pfeifferi snails. In addition to those indicated above, non·schistosome transmitting snails were also found.