<prompt> Causative agent of plague ?Yersinia pestisYersinia enterocoliticaYersinia pseudotuberculosisPasteurella septica  <response>: Ans. is a i.e., Yersinia pestis Infection caused by yersinia genus are divided into :? Plague :- It is a deadly infectious disease caused by yersinia pestis. Yersinosis :- It is characterized by infectious diarrhea, enteritis, ileitis and occasionally septicemia. It is caused by yersinia enterocolitica most common and yersinia pseudotuberculosis. 