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Yersinia Pestis

Yersinia Pestis. Justin Arguelles. Classification. Domain: Bacteria Kingdom: Eubacteria Phylum: Proteobacteria Class: Gammaproteobacteria Order: Enterobacteriales Family: Enterobacteriaceae Genus: Yersinia Species: Y. pestis. Characteristics. Facultive anaerobes

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Yersinia Pestis

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  1. YersiniaPestis Justin Arguelles

  2. Classification • Domain: Bacteria • Kingdom: Eubacteria • Phylum: Proteobacteria • Class: Gammaproteobacteria • Order: Enterobacteriales • Family: Enterobacteriaceae • Genus: Yersinia • Species: Y. pestis

  3. Characteristics • Facultive anaerobes • Rod shaped (bacilli) • Takes three main forms: pneumonic, septicemic, and the notorious bubonic plagues. • Thought to be descendant from Y. pseudotuberculosis, differing only in the presence of specific virulence plasmids. • Gram negative • Nonmotile

  4. History • Believed to be the cause of Plague of Justinian in 542 and the Black Death that accounted for the death of at least one-third of the European population between 1347 and 1353. • Discovered in 1894 by Alexandre Yersin, a Swiss/French physician and bacteriologist during an epidemic of plague in Hong Kong. • Used as a biological weapon in modern warfare when on October 4, 1940 a Japanese airplane flying over Chushien, Chekiang Province, China released rice and wheat plus rat fleas carrying Y. pestis.

  5. Diseases • Bubonic plague • Septicemic plague • Pneumonic plague • Transmitted among wild rodents by fleas, in which the bacteria multiply and block the esophagus and the pharynx.

  6. Treatment • Streptomycin • Chloramphenicol • Tetracycline • Fluoroquinolones • Doxycycline • Gentamicin

  7. Works Cited • "Bubonic plague." World of Forensic Science. Ed. K. Lee Lerner and Brenda Wilmoth Lerner. Detroit: Gale, 2006. Gale Science In Context. Web. 7 Feb. 2011. • Fountain, Henry. "From pest to plague." New York Times 30 Apr. 2002: F3. Gale Science In Context. Web. 7 Feb. 2011. • "Plague." World of Health. Gale, 2010. Gale Science In Context. Web. 7 Feb. 2011.

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