E. Coli Outbreak Tied to McDonald’s Expands to 14 States, 104 Infected

An E. coli outbreak linked to slivered onions used in some McDonald’s burgers has spread to more states and infected more people.

A McDonald's Quarter Pounder hamburger and coke in New York on Oct. 24, 2024. Brendan McDermid/Reuters

Federal health and food safety officials said Wednesday that the E. coli outbreak linked to slivered onions used on McDonald’s hamburgers has spread to more states and sickened more people, including additional hospitalizations.

The Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA) provided updates on Nov. 13 on their respective investigations into the E. coli outbreak, noting that the number of cases has risen to 104 across 14 states.