title: A serological survey of swine sera for antibodies to Brucella spp. in El Salvador.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis*; D002006:Brucellosis / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary*; D004544:El Salvador; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology* / Q000276:immunology
chemical_list: D000907:Antibodies, Bacterial