The initial findings from the investigation indicate that a subset of illnesses may be linked to slivered onions used in the Quarter Pounder and sourced by a single supplier that serves three distribution centers. As a result, and in line with our safety protocols, all local restaurants have been instructed to remove this product from their supply and we have paused the distribution of all slivered onions in the impacted area.
As of October 22, 49 people infected with the outbreak strain of E. coli O157:H7 have been reported from 10 states – Oregon, Montana, Wyoming, Utah, Colorado, Nebraska, Kansas, Iowa, Missouri and Wisconsin. Illnesses started on dates ranging from Sept 27, 2024, to October 11, 2024. Of 28 people with information available, 10 have been hospitalized, and 1 person developed hemolytic uremic syndrome, a serious condition that can cause kidney failure. One death has been reported from an older adult in Colorado.
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