Yersinia

species of bacteria, cause of plague

Yersinia is a genus of bacteria in the family Yersiniaceae. Yersinia species are Gram-negative, coccobacilli bacteria, and are facultative anaerobes. Three members of Yersinia are pathogenic in humans: Y. pestis causes the plague and Y. enterocolitica and Y. pseudotuberculosis cause gastrointestinal syndromes. Rodents are the natural reservoirs of Yersinia; less frequently, other mammals serve as the host. Infection may occur either through blood (in the case of Y. pestis) or in an alimentary fashion, occasionally via consumption of food products (especially vegetables, milk-derived products,

species of bacterium

species of bacterium

species of bacterium

species of bacterium