title: Protective immunity to hydatid disease?
mesh_terms: D000906:Antibodies / Q000032:analysis; D004443:Echinococcosis / Q000276:immunology*; D006801:Humans; D007112:Immunity, Maternally-Acquired; D007493:Iraq; D012550:Schistosoma mansoni / Q000276:immunology; D012552:Schistosomiasis / Q000276:immunology*
chemical_list: D000906:Antibodies