title: Experimental study on the protective antigen derived from the vaccine strain Brucella abortus BA-19.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000941:Antigens; D001770:Blood Bactericidal Activity; D002004:Brucella Vaccine; D002003:Brucella abortus / Q000276:immunology*; D002417:Cattle; D003168:Complement Fixation Tests; D004912:Erythrocytes / Q000276:immunology; D006168:Guinea Pigs; D006386:Hemagglutination Tests; D006968:Hypersensitivity, Delayed; D007114:Immunization; D051379:Mice
chemical_list: D000941:Antigens; D002004:Brucella Vaccine