title: Studies on Yersinia antigens.
mesh_terms: D000942:Antigens, Bacterial / Q000302:isolation & purification*; D006386:Hemagglutination Tests / Q000379:methods; D006801:Humans; D010930:Plague / Q000175:diagnosis; D015010:Yersinia pestis / Q000276:immunology*
chemical_list: D000942:Antigens, Bacterial