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Yersinia pestis

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Plague (The Black Death)

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Caused by the bacterium Yersinia pestis, through zoonotic mammals and their fleas.

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Y. pestis can be released into the extracellular compartment and spread systemically with acquisition of phagocytosis resistance.

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Three types of plague that come from Yersinia pestis

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Three types of plague that come from Yersinia pestis

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There are no vaccines in the US to prevent the plague. If a case were to arise, avoid contact with fleas and rodents.

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In the bubonic form of plague, the bacteria enter through the skin through a flea bite and travel via the lymphatic vessels to a lymph node, causing it to swell.

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fever, headache, swelling of lymph nodes, vomiting, pain, and pus exudation