McDonald's has ruled out Quarter Pounder patties as the source of E. coli contamination, according to a recent statement. The fast-food chain is working to identify the cause of the outbreak after several customers reported falling ill. No further details on the investigation have been released.

Source: https://www.bloomberg.com/news/articles/2024-10-27/mcdonald-s-rules-out-quarter-pounder-patties-as-e-coli-source