The Centers for Disease Control and Prevention announced Tuesday that multiple agencies are investigating an E. coli outbreak linked to Quarter Pounder burgers at McDonald's. The agency said there ...

McDonald's has stopped selling Quarter Pounder hamburgers at about one-fifth of its U.S. restaurants as federal health officials investigate an outbreak of E. coli that has sickened nearly 50 people ...

Fresh slivered onions served on McDonald’s Quarter Pounders were the likely source of an E. coli outbreak that has led to one death and illnesses in more than a dozen states, the US Centers for ...

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...

An E. coli outbreak linked to McDonald's Quarter Pounder burgers has caused illnesses in at least 49 people across 10 states, leaving 10 people hospitalized and one dead, the Centers for Disease ...