A dramatic increase of Yersinia enterocolitica serogroup O:8 infections in Poland.

摘要

Yersinia enterocolitica and Y. pseudotuberculosis have been reported as a cause of gastroenteritis and mesenteric lymphadenitis. Sometimes, a Yersinia infection is suspected on the basis of postinfectious complications, such as reactive arthritis or erythema nodosum, after an infection which has mostly passed unnoticed [1]. Different pathogenic serogroups of Y. enterocolitica are found in different parts of the world. For many years, serogroups 0:3 and O:9 were predominant in Europe, while Y. enterocolitica serogroup 0:8, biotype IB was the most prevalent serogroup in the USA [1]. Nowadays, in North America, the epidemiological pattern of Y. enterocolitica infections has changed, and serogroup O:3, biotype 4 is now predominant, like in other parts of the world [1, 2].