Key points
Epidemiologic and traceback data show that fresh, slivered onions served at McDonald’s are the likely source of this outbreak. Onions were pulled from affected McDonald’s locations and Taylor Farms recalled yellow slivered onions sent to other food service operators.
Where sick people live
This map shows where the 90 people in this E. coli outbreak lived.
This outbreak may not be limited to the states with known illnesses, and the true number of sick people is likely much higher than the number reported. This is because many people recover without medical care and are not tested for E. coli.