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The Centers for Disease Control and Prevention (CDC) has declared the conclusion of the E. coli O157:H7 outbreak linked to McDonald's Quarter Pounder hamburgers. The outbreak, which began in late September 2024, affected 104 individuals across 14 states, resulting in 34 hospitalizations and one fatality—a 78-year-old man from Colorado.
Epidemiological and traceback investigations identified fresh, slivered onions supplied by Taylor Farms as the likely source of contamination. These onions were used in Quarter Pounders and other menu items. In response, McDonald's promptly. . .
