US closes investigation into E. coli outbreak linked to onions in McDonald's Quarter Pounders - The Associated Press
- US closes investigation into E. coli outbreak linked to onions in McDonald's Quarter Pounders The Associated Press
- Are onions safe to eat after the E. coli outbreak? What you must know Fox News
- E coli outbreak linked to McDonald's Quarter Pounders declared over: CDC ABC News
- E. coli outbreak linked to McDonald's is over, CDC says CBS News
- McDonald's Cleared by CDC After Investigation into Lethal E. Coli Outbreak PEOPLE