McDonald’s said that beef patties used in its Quarter Pounder hamburgers were not the source of a deadly E. coli outbreak in multiple states that sparked warnings from the U.S. Centers for Disease Control and Prevention.
On Sunday, the fast-food giant issued a statement that Quarter Pounder beef patties tested negative for the bacteria. Federal officials had identified slivered onions used in the burgers as the likely source of the outbreak.
“Over the weekend, McDonald’s was informed that the Colorado Department of Agriculture has completed their testing, the results of which confirm that there was no detection of E. coli in the samples taken of Quarter Pounder beef patties from restaurants in this area,” the company said. “We’ve been informed there is no further testing planned for beef patties.”…