TRANSMISSION OF SCHISTOSOMIASIS IN THE GEZIRA SCHEME, GEZIRA STATE, SUDAN. (An investigated study in August 1999 – July 2000)

Abstract

The varied climatic environment of the Sudan has considerable influence on the distribution of snails. Thus, the occurrence of snails in different parts of the Sudan was reported.Archibald (1933), reported the presence of Bulinus forskalii in springs in the Nuba mountains in western Sudan. Doumenge et al, (1987) mentioned that Bulinus truncatus, the intermediate host of Schistosoma haematobium, seems to tolerate drought and as thus it is the most widespread in Darfur, Kordofan and the area around Kassala. It is also well established in the Nile below Khartoum. Doumenge et al, (1987) also reported the occurrence of Biomphalaria pfeifferi, the intermediate of Schistosoma mansoni, in Jebel Marra area, western Sudan and in the area around Juba in Southern Sudan. Recently, both Bulinus and Biomphalaria snails were found in Jonglei canal region, southern Sudan (Brown et al, 1984).