Schistosomiasis due to Schistosoma mansoni is a snail-transmitted parasitic disease that affects millions of individuals and is amajor concern for a number of subtropical countries (1) . Control by chemotherapy and mollusciciding is costly, may lead to the emergenceof resistant strains of parasites, and requires well-trained personnel who are seldom available in endemic areas (2-6); for these r...

Irrigation for intensive sugar cultivation started in the early 1980s at Richard Toll, some 100 km from the mouth of the Senegal River. Infections with Schistosoma mansoni were first seen in late 1988. This study records quantitative snail surveys for over 3 years from 1992 at sites representing different habitats in and around the irrigation scheme. Populations of both Biomphalaria pfeifferi (...

Effective interruption of the Schistosoma life cycle is essential to blocking the parasite’s transmission, and thus truly preventing human schistosomiasis over the long term. Our current mass treatment campaigns were expected to limit transmission by reducing environmental contamination with parasite eggs. However, the process of transmission has proven to be very focal and highly efficient, su...

Schistosomiasis, generally identified as Bilharzia, is an earliest human disease, Schistosoma mansoni is transmitted by the aquatic pulmonate snails of the genus Biomphalaria. Intestinal schistosomiasis due to infection with Schistosoma mansoni have been known in Saudi Arabia. Also, the urinary schistosomiasis has been reported in Saudi Arabia since 1887, absolutely certain members of the genus...

Department of Medicine, College of Medicine and Health Sciences, Sultan Qaboos University, PO Box 35, Al-Khod-123, Sultanate of Oman. Email: [email protected] THE STRATEGIC LOCATION OF THE ARABIAN Peninsula between Africa, Asia and Europe, has since early historical times drawn travellers, seafarers, and merchants to this part of the Middle East. It is inevitable that importation of communicable...