McDonald’s Quarter Pounder back on menu after E. coli outbreak [Video]

McDonald’s announced Sunday that Quarter Pounders will again be on its menu at hundreds of its restaurants after testing ruled out beef patties as the source of the outbreak of E. coli poisoning tied to the popular burgers that killed one person and sickened at least 75 others across 13 states.Video above: Nationwide E. coli outbreak at McDonald’sThe U.S. Food and Drug Administration continues to believe that slivered onions from a single supplier are the likely source of contamination, McDonald’s said in a statement. It said it will resume selling the Quarter Pounder at affected restaurants — without slivered onions — in the coming week.As of Friday, the outbreak had expanded to at least 75 people sick in 13 states, federal health officials said. A total of 22 people had been hospitalized, and two developed a dangerous kidney disease complication, the Centers for Disease Control and Prevention said. One person …