Onions likely source of E.Coli outbreak in McDonald's sandwich in US

Federal health officials in the United States have concluded their investigation into a bacterial outbreak linked to McDonald's Quarter Pounder, determining that sliced onions were likely the cause of the problem. They said a sample of yellow onions recalled from the chain and another environmental sample from a grower tested positive for , though neither matched the strain linked to the reported illnesses. According to the U.S. Food and Drug Administration (FDA), 104 people have been infected in 14 states, with 34 hospitalizations and one death. The FDA cited epidemiological and trace evidence that the recalled yellow onions were the likely cause of the outbreak. State and local health officials interviewed infected people and reported that most recalled eating McDonald's items containing sliced onions. Taylor Farms, the onion supplier linked to the outbreak, initiated a voluntary recall of its yellow onions shortly after news of the outbreak broke. McDonald's said it has stopped ...