When two or more people get sick with the same strain of STEC after eating the same food, this is called a foodborne outbreak of STEC infection. Foodborne outbreaks of STEC infection can happen in just a few family members who become infected at a single meal, or in hundreds or thousands of people across the country who ate the same contaminated food that is widely distributed in the U.S. Outbreaks of STEC have been linked to foods such as ground beef, packaged salads, romaine lettuce, and flour. STEC outbreaks can also happen when two or more people get sick after being exposed to infected animals from the same source (such as the same animal exhibit or fair), including cows, goats, sheep, and deer.
Learn more about recent STEC outbreaks
Learn more about foodborne illnesses and outbreaks