McDonald’s says supplier Taylor Farms is source of onions linked to E. Coli outbreak NBC NewsOnions Recalled in Deadly E.Coli Outbreaks Linked to McDonald’s Quarter Pounders The New York TimesTaco Bell, KFC, and Pizza Hut are pulling onions following E. coli outbreak QuartzyMcDonald’s says onions from California grower linked to deadly E. coli outbreak The Associated PressWhere People Got Sick: E. coli Outbreak, McDonald’s Quarter Pounders – October 22, 2024 CDC