Molecular Biological Studies On Resistant Snails For Controlling Bilharzial Disease

Abstract

Biomphalaria alexandrina is the most common freshwater intermediate snail host prevailing in Egypt; B. glabrata has been introduced and has been reported from habitats in the Nile Delta. Both species have been recognized as the intermediate hosts of S. mansoni, which are responsible for wide spread schistosomiasis infections in Egyptian people. For control of Schistosomiasis, understanding of the host/parasite association is important, since the host parasite relationship is often complex and questions remain concerning the susceptibility of snails to infection by respective trematodes and their specificity and suitability as hosts for continued parasite development. Susceptibility or resistance toS