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VisitInvestigation outcome of McDonald's E. coli outbreak by March 2025?
Onion grower found liable • 25%
McDonald's found liable • 25%
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CDC or US health officials' reports
CDC Links McDonald's E. Coli Outbreak to Slivered Onions in Quarter Pounders
Oct 30, 2024, 10:58 PM
An E. coli outbreak linked to McDonald's has been traced to fresh, slivered onions used in their Quarter Pounder hamburgers. The Centers for Disease Control and Prevention (CDC) confirmed that these onions, which are no longer available for sale to food service operators, are the likely source of the illness. US health officials have identified more cases of E. coli and are inspecting an onion grower in Washington. The onions were not likely to have reached grocery stores or consumers directly.
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Onions confirmed as sole source • 25%
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Slivered onions from Taylor Farms • 25%
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