Which of the following causes plague?
(a) Trichinella spiralis
(b) Salmonella typhimurum
(c) Yersinia pest is
(d) Leishmania donovani.
Ans-(c) Yersinia pestis
Explanation-
Plague is an infectious disease caused by bacteria called Yersinia pestis. Thease bacteria are found mainly in rodents, particularly rats and fleas that feed on them. The bacterium gets transmitted from the host(rat) to human via bite of an animal or insect such as flea.
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