McDonald’s Quarter Pounders linked to E. coli outbreak, CDC says AxiosWhere People Got Sick: E. coli Outbreak, McDonald’s Quarter Pounders – October 22, 2024 CDCWatch McDonald’s Burgers Linked to E. Coli Outbreak: CDC Bloomberg1 Dead as McDonald’s Food Poisoning Outbreak Spreads to 10 States ScienceAlertOutbreak Investigation of E. coli O157:H7: McDonald’s Quarter Pounders (October 2024) FDA.gov