McDonald's E. Coli Outbreak Resolved, Snack Wraps Returning in 2025

Public health officials quickly traced an E. coli outbreak to slivered onions used in McDonald's Quarter Pounders across 14 states, leading to 104 illnesses and one death. The CDC and FDA worked with state health officials and McDonald's to identify the source, resulting in a temporary halt of Quarter Pounder sales and a recall of onions from a Colorado supplier. Despite extensive testing, the exact contamination source remains unconfirmed, but the outbreak is now declared over.