US closes investigation into E. coli outbreak linked to onions in McDonald’s Quarter Pounders
The U.S. government has closed its investigation into the outbreak tied to slivered onions in Quarter Pounders. DENVER — The U.S. government said Tuesday it has closed its investigation into an E. coli outbreak tied to McDonald’s Quarter Pounder hamburgers after determining there is no longer a safety risk. The outbreak, which began in late … Read more