According to the author, the book addresses to all the scientists and not only to immunologists or biologists of European countries who are engaged in developing a vaccine, or a diagnostic kit or a new drug against the infection or on schistosome evolution. Even these scientists have to visit endemic countries for field trials or ask their counterparts to collect field data (which this book addresses ). Thus this book is not on molecular fundamentals but on the infection itself, how schistosome species are responding to the drug, sensitivity and specificity of immunodiagnostic kits, antigen molecules, snail compatibility, production losses, schistosome evolution, schistosome outbreaks, complexities where more than two schistosome species are existing, problem of human schistosomiasis in South Asia etc.