McDonald’s Quarter Pounders Back on the Menu After E. coli Scare, Onions Identified as Likely Source
Following reports of food poisoning linked to E. coli bacteria in McDonald’s patties, the fast food giant has announced that its Quarter Pounders are returning to the menu after tests found no E. coli in its beef. The company has identified contaminated silvered onions from a single source as the likely cause of the outbreak and will be discontinuing their use.