As part of the investigation, 75 of those reporting illnesses have been interviewed by health investigators.
Symptoms include severe stomach cramps, diarrhea and vomiting. They begin, on average, three to four days after ingesting the bacteria. Most people recover in five to seven days. The first reported symptoms from this outbreak began March 2.
Seventeen patients have been hospitalized due to their illness.
Federal, state and local health officials are continuing to investigate.
In the meantime, the CDC reminds consumers to prevent E. coli by washing hands, cooking ground beef to an internal temperature of 160 degrees, as measured with a meat thermometer, and keeping foods that aren’t cooked away from raw beef to prevent cross-contamination.