
McDonald's is bringing back its Quarter Pounders to all restaurants this week amid an ongoing E. coli outbreak traced to ingredients in the fast food chain’s famed burger. The outbreak has sickened at least 75 people across 13 states, the Centers for Disease Control and Prevention (CDC) reported Friday. One person has died.
During a media briefing on Sunday, McDonald's confirmed that the beef used in its Quarter Pounder patties is not the source of contamination in the ongoing outbreak. Testing conducted by the Colorado Department of Agriculture found that samples of the beef tested negative for E. coli, USA Today reported.