Yersinia pestis
The bacteria that causes the bubonic plague which in the year 541 (as the Black Death) and later in the Middle Ages decimated Europe. The effects of the plague are described in the nursery rhyme "We all fall down." Y. pestis mainly infects rats and other rodents which are the prime reservoir for the bacteria. Fleas are the prime vectors carrying the bacteria from one species to another. They bite rodents infected with Y. pestis, then they bite people and so transmit the disease to them. Transmission of the plague to people can also occur from eating infected animals such as squirrels. Once someone has the plague, they can transmit it to another person via aerosol droplets. Plague occurs in the U.S. It is treatable with antibiotics but, if not treated promptly, can promptly lead to death. Yersinia is named after the Swiss bacteriologist Alexandre-Emile-Jean Yersin (1863-1943) who identified it in 1894 after a trip to Hong Kong looking for the agent that was killing thousands of people in southern China. The bacteria was also discovered at the same time by the Japanese bacteriologist Shibasaburo Kitasako.

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the etiologic agent of plague in humans and various rodents, transmitted from rat to rat and from rat to humans by the rat flea, and from human to human by the human body louse.

Medical dictionary. 2011.

Look at other dictionaries:

  • Yersinia pestis — A scanning electron microscope micrograph depicting a mass of Yersinia pestis bacteria. Scientific classification Domain …   Wikipedia

  • Yersinia pestis — Systematik Abteilung: Proteobacteria Klasse …   Deutsch Wikipedia

  • Yersinia pestis — Yersinia pestis …   Wikipédia en Français

  • Yersinia pestis — Pequeño bacilo gramnegativo que provoca la peste. El huésped primario es la rata, aunque otros roedores pequeños también pueden ser huéspedes. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 …   Diccionario médico

  • Yersinia pestis — es un bacilo gramnegativo aerobio …   Enciclopedia Universal

  • Yersinia pestis —   Yersinia pestis Yersin …   Wikipedia Español

  • Yersinia pestis — ? Чумная палочка Yersinia pestis, окрашенные флюоресцентным красителем, 2000x. Научная классификация Царство: Бактерии …   Википедия

  • Yersinia pestis — Yersinia pestis …   Wikipédia en Français

  • Yersinia pestis — Bubonic plague Bubonic plague (Med.) a severe and often fatal disease caused by infection with the bacterium {Yersinia pestis} (formerly {Pasteurella pestis}), transmitted to man by the bite of fleas, themselves usually infected by biting… …   The Collaborative International Dictionary of English

  • Yersinia pestis — см. Палочка чумы …   Большой медицинский словарь

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