The Yersinia Pestis Bacteria
Yersinia pestis bacteria, which is an organism responsible for plagues and epidemics is capable of growing with or without oxygen. Animals that are known to carry the bacteria include rats, prairie dogs, and fleas. During an outbreak, the bacteria can survive for months in cool, moist conditions, such as a rodent hole. Approximately 10 to 20 people in the United States develop an infection each year from flea or rodent bites. This rod shaped bacterium is responsible for almost a third of the European population during the 14th century. This bacterium takes on three forms: pneumonic, septicemic, and the bubonic plague.
Yersinia pestis was formerly classified in the Pasteurellaceae family, but based on its similarities to Escherichia coli (E. coli), the Yersinia group has been reclassified as members of the Enterobacteriaceae family. Although there are 11 named species in the genus Yersinia, only three are considered important human pathogens:
Yersinia pestis was formerly classified in the Pasteurellaceae family, but based on its similarities to Escherichia coli (E. coli), the Yersinia group has been reclassified as members of the Enterobacteriaceae family. Although there are 11 named species in the genus Yersinia, only three are considered important human pathogens:
- Yersinia pestis
- Yersinia pseudotuberculosis
- Yersinia enterocolitica.
- Mice
- Squirrels
- Fleas
- Cats
- Dogs
- Lice
- Prairie dogs
- Wood rats
- Chipmunks.