A deadly E. coli outbreak linked to McDonald’s Quarter Pounder burgers has affected more than 100 people across 14 states, prompting concerns about food safety in fast-food chains.
At a Glance
- 104 people affected by E. coli outbreak linked to McDonald’s Quarter Pounder onions
- 34 hospitalizations and one death reported in Colorado
- Outbreak occurred between September 12 and October 21
- McDonald’s has switched onion suppliers and reintroduced Quarter Pounders
- FDA states no ongoing food safety concern at McDonald’s restaurants
Outbreak Details
An E. coli outbreak linked to slivered onions on McDonald’s Quarter Pounder burgers has affected 104 people in 14 states. The outbreak, which occurred between September 12 and October 21, resulted in at least 34 hospitalizations and one death in Colorado. The highest number of cases was reported in the Centennial State, with 30 individuals impacted.
The Centers for Disease Control and Prevention (CDC) identified slivered onions from Taylor Farms as the likely source of the outbreak. In response, McDonald’s temporarily removed Quarter Pounders from menus in several states and switched to a different supplier for their onions.
E. COLI OUTBREAK UPDATE: Today, CDC added a list of states where McDonald’s has removed slivered onions and quarter pound beef patties from its stores. Illnesses started on dates ranging from Sept 27, 2024, to October 11, 2024. Call your healthcare provider if you have severe E.… pic.twitter.com/pIaG4ZVeth
— CDC (@CDCgov) October 23, 2024
McDonald’s Response
The fast-food giant has since reintroduced Quarter Pounders with slivered onions at approximately 900 restaurants using an alternate supplier, and investigations ruled out beef patties as the source of contamination.
The Food and Drug Administration (FDA) and Colorado officials collected samples from McDonald’s locations for testing, and while one onion sample tested positive for E. coli, it did not match the outbreak strain. Taylor Farms, the original onion supplier, has since recalled its yellow onions.
Health Concerns and Symptoms
E. coli infections can cause severe symptoms, including stomach cramps, diarrhea, and vomiting, and young children are susceptible to kidney complications. Health officials advise individuals who have consumed a McDonald’s Quarter Pounder and are experiencing symptoms to contact their healthcare provider immediately.
“There does not appear to be a continued food safety concern related to this outbreak at McDonald’s restaurants,” the FDA later stated.
While the immediate threat appears to have been addressed, health officials continue to monitor the situation closely. Consumers are advised to remain vigilant and report any unusual symptoms after consuming fast food.
