CDC Declares McDonald’s E. coli Outbreak Onions

The outbreak sickened 104 people across 14 states, with one death and 34 hospitalizations linked to contaminated slivered onions from Taylor Farms.

The CDC and FDA have closed their investigation into the E. coli outbreak tied to McDonald’s Quarter Pounders, identifying slivered onions from Taylor Farms as the likely source.
The outbreak affected 14 states, causing 104 illnesses, 34 hospitalizations, and one death in Colorado; the true number of cases may be higher due to unreported illnesses.
McDonald’s temporarily removed Quarter Pounders from menus in impacted areas and switched to a new onion supplier by late October to mitigate the issue.
Taylor Farms initiated a voluntary recall of yellow onions, though investigators could not isolate the specific E. coli strain in tested samples or the environment.
McDonald’s has invested $100 million into recovery efforts, including franchisee support and marketing campaigns, as it works to rebuild customer trust and address the sales impact.

CDC Declares McDonald’s E. coli OutbreakOnions