At least 104 people have been sickened, with 34 hospitalized, in an outbreak of E. coli food poisoning tied to onions served on McDonald's Quarter Pounder hamburgers, federal health officials said Wednesday.
In October 2024, an E. coli outbreak was linked to McDonald's Quarter Pounder in 10 U.S. states (Colorado, Kansas, Utah, Wyoming, and portions of Idaho, Iowa, Missouri, Montana, Nebraska, Nevada, New Mexico, and Oklahoma). The CDC has not confirmed the origin, but it is suspected to be either the quarter-pound meat patties or slivered onions. As of October 22, there have been 49 cases, 10 hospitalizations, and 1 death.
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