- McDonald’s Quarter Pounder hamburgers linked to deadly E. coli outbreak, CDC saysCBS News
- This is how important the Quarter Pounder is to McDonald’s — and why it will want to address E. coli issues quicklyBusiness Insider
- McDonald’s linked to one death, dozens of food poisonings in USAl Jazeera English
- Where People Got Sick: E. coli Outbreak, McDonald’s Quarter Pounders – October 22, 2024CDC
- Watch These McDonald’s Price Levels as Stock Drops on E. Coli InvestigationInvestopedia