Yersiniosis 2004

Table 1. Yersiniosis Cases by Race and Sex, Indiana, 2004

  2004 2000-2004
Cases Rate* Cases
Total 10 0.16 46
   White 5 0.09 27
   Black 2 0.36 9
   Other 1 0.63 2
   Not Reported 2 - 8
   Male 6 0.20 27
   Female 4 0.13 19
   Not Reported 0 - 0

*Rate per 100,000 population based on the U.S. Census Bureau’s population data as of July 1, 2004

Yersiniosis is a bacterial infection that usually affects the intestinal tract. The infection is typically acquired by eating contaminated food such as raw or undercooked pork. Pigs are the main reservoir for the bacteria, but other animals including rodents, sheep, cattle, horses, and dogs can also cause human illness. Fecal waste from animals can contaminate water, milk, and foods and become a source of infection for people or other animals. Symptoms include diarrhea, abdominal cramps, and fever.

In 2004, there were 10 cases of yersiniosis reported in Indiana, for a rate of less than 1 case per 100,000 population (Table 1). Figure 1 shows reported cases by year for
2000-2004. Incidence of disease was greatest during March and December but can occur at any time (Figure 2). Figure 3 shows age-specific rates were greatest for infants less than 1 year of age (2.32), followed by adults aged 80 years and older (1.35).

Seven Indiana counties reported yersiniosis cases in 2004. However, no county had five or more reported cases. There were no outbreaks of yersiniosis reported in Indiana in 2004.

You can learn more about yersiniosis by visiting the following Web site: