McDonald’s Quarter Pounder back on US menu after E. coli outbreak resolution

McDonald's Quarter Pounders are back on the menu in US restaurants. The decision comes after a recent E. coli outbreak, which was attributed to beef patties by McDonald's Chief Supply Chain Officer. Initially, several restaurants in a dozen US states temporarily pulled the burgers from their menus due to safety concerns. However, McDonald's claimed that no E. coli was detected in its Quarter Pounder beef patties, and the company decided to resume sales nationwide. This decision was based on negative test results, and the company stated that no further testing was planned.