Yersiniosis

Yersiniosis is an infection. It results from bacteria called Yersinia enterocolitica. Most often, people get this infection when they eat pork that’s raw or undercooked. You can also get it from other animals, such as rodents, cows, sheep, rabbits and horses. Less commonly, dogs and cats can spread the bacteria, too. Young children are more likely to get yersiniosis.

This infection causes fever and gastrointestinal (GI) problems such as diarrhea. Most often, yersiniosis clears up without treatment. But you may need antibiotics to kill the bacteria. Rarely, yersiniosis can cause other health issues, such as a rash and joint pain.

Who might get yersiniosis?

Anyone can get yersiniosis. But it’s more common in children than adults. People who prepare chitlins (a food made from pig intestines) are more likely to get the infection. They’re also more likely to spread it to others, especially children.

How common is yersiniosis?

In the United States, yersiniosis affects about 117,000 people every year. Nearly 650 people have to go to the hospital for treatment, and around 35 people die from the infection each year.