Early information showed that uncooked slivered onions used on the burgers “are a likely source of contamination,” the FDA ...
The number of people infected by the E. coli outbreak tied to McDonald's (MCD.N) Quarter Pounder hamburgers increased to 75 ...
Moves by major U.S. fast-food chains to temporarily pull fresh onions off their menus on Thursday, after the vegetable was named as the likely source of an E. coli outbreak at McDonald's, laid bare ...