description of Yersinia genus
Yersinia is a genus of bacteria in the family Enterobacteriaceae. Yersinia species are Gram-negative, rod-shaped bacteria, a few micrometers long and fractions of a micrometer in diameter, and are facultative anaerobes.Some members of Yersinia are pathogenic in humans; in particular, Y. pestis is the causative agent of the plague.n interesting feature peculiar to some of the Yersinia bacteria is the ability to not only survive, but also to actively proliferate at temperatures as low as 1-4Â°C (e.g., on cut salads and other food products in a refrigerator).