from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal


Sorry, no etymologies found.


  • In ancient and medieval times, people thought the plague was caused by rats, but the true cause wasn't discovered until 1894, when Alexandre Yersin of France and Kitasato Shibasaburo of Japan finally traced it to a bacterium now called Yersinia pestis, which is transmitted by fleas, which in turn are carried around by rats. News

  • * It was widely caused by a bacterium named Yersinia pestis and was spread by rats and fleas.

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  • Another plague that really made the “dark” Middle Ages dark was the Black Death, or bubonic plague, which is caused by the bacterium Yersinia Pasteurella pestis.

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  • In addition to mosquitoes, today I might add Plasmodium falciparum, Vibrio cholerae, and Yersinia pestis to the list (the life forms responsible for malaria, cholera, and the Black Death respectively).

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  • In 1347, the bacterium Yersinia pestis, carried by rats and spread by fleas, caused the "Black Death" -- an outbreak of bubonic plague.

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  • The Black Death of the Middle Ages is traditionally considered to have been an outbreak of the bubonic plague, a disease caused by the bacterium Yersinia pestis, the disease spread by fleas carried by animals, especially by the black rat.

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  • Borne by fleas that circulate among rodents, Y. pestis can infect humans with bubonic plague, causing fever, headache and painful swelling of the lymph nodes.

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  • The same bacterium, Yersinia pestis, is responsible for both pneumonic and bubonic plague.

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  • Centers for Disease Control and PreventionPlague is an infectious disease of animals and humans caused by a bacterium named Yersinia pestis.


  • By fleas that become infected with bacteria Yersinia pestis that cause plague.



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