McDonald’s is facing a serious health crisis after an E. coli outbreak linked to its popular quarter pounder hamburgers sickened at least 49 people across 10 states, with one reported fatality. Health officials from the U.S. Centers for Disease Control and Prevention (CDC) confirmed that most of those affected had consumed quarter pounders at McDonald’s before falling ill. The states hit hardest by the outbreak include Colorado and Nebraska, where the majority of cases have been concentrated.
While the exact ingredient responsible for the contamination has not yet been identified, McDonald’s has taken precautionary steps by temporarily halting the use of fresh slivered onions and quarter pound beef patties in several states. The fast-food giant is collaborating with health authorities to determine which ingredient in the quarter pounders may have caused the outbreak. In a statement, the CDC noted that the investigation is ongoing, and McDonald’s is working closely with its partners to ensure the safety of its food.
McDonald’s USA President Joe Erlinger addressed the outbreak in a video statement, emphasizing the company’s commitment to food safety. “Food safety is so important to me and everyone at McDonald’s. We’ve taken steps to proactively remove slivered onions, which are used in quarter pounders, in select states. We’ve also made the decision to temporarily remove the quarter pounder from restaurants in affected states,” Erlinger said. He assured customers that most menu items and most states were not impacted by the outbreak, and McDonald’s would continue to provide updates as the investigation progresses.
The outbreak has dealt a significant blow to McDonald’s, with the company’s shares plummeting by 9 percent in after-hours trading following the announcement. This health crisis comes on the heels of a challenging year for the fast-food chain. In July, McDonald’s reported its first drop in quarterly same-store sales in four years, driven by a combination of factors including rising inflation and consumer backlash related to the company’s perceived support for Israel amid its conflict with Gaza.
McDonald’s CEO Chris Kempczinski has already warned that 2025 could be another difficult year, as the financial strain on lower-income customers is expected to continue. The current E. coli outbreak only adds to the difficulties facing the Chicago-based chain as it navigates these challenges while ensuring food safety remains a top priority.
