McDonald’s E. coli outbreak leads Burger King, KFC, Pizza Hut to remove onions from some locations CBS NewsInvestigation Update: E. coli Outbreak, McDonald’s Quarter Pounders – October 22, 2024 CDCMcDonald’s says supplier Taylor Farms is source of onions linked to E. Coli outbreak NBC NewsUh, Should You Worry About McDonald’s Because of the Whole E. Coli Thing? SlateOnions Recalled in Deadly E.Coli Outbreaks Linked to McDonald’s Quarter Pounders The New York Times