McDonald’s hamburgers linked to deadly E. coli outbreak in the US BBC.comWhere People Got Sick: E. coli Outbreak, McDonald’s Quarter Pounders – October 22, 2024 CDCMcDonald’s Stock Slides After Quarter Pounders Linked to E. Coli The Wall Street Journal1 Dead as McDonald’s Food Poisoning Outbreak Spreads to 10 States ScienceAlertNebraska, Colorado mostly affected in multi-state outbreak of E. coli Nebraska Examiner