The incidence of yersiniosis in Oregon has been fairly stable over the years. In 2003, the number of cases dropped to 5, the lowest incidence since 1995. Yersiniosis occurs throughout the year with no seasonality. By far the most common species is
Y. enterocolitica, and all cases in 2003 were caused by this species.
Promoting health and preventing the leading causes of death, disease and injury in Oregon.