title: Schistosomiasis vaccines: the need for more research before clinical trials.
mesh_terms: D000818:Animals; D006801:Humans; D012547:Schistosoma / Q000276:immunology*; D012552:Schistosomiasis / Q000276:immunology / Q000517:prevention & control*; D014612:Vaccines / Q000008:administration & dosage* / Q000276:immunology