A severe E. coli outbreak tied to onions served with McDonald’s quarter pounders sickened dozens of people in the US, mainly in Colorado and Nebraska, and killed one, the U.S. Centers for Disease Control and Prevention said.

Oct. 22 (UPI) -- An E. coli outbreak linked to McDonald's Quarter Pounders has led to one death and 10 hospitalizations, the Centers for Disease Control and Prevention announced Tuesday, as the fast food chain pulled the iconic burgers from its restaurants in several states.

An E. coli outbreak tied to McDonald's Quarter Pounder hamburger has left one person dead and dozens sick across 10 US states. The fast food chain has now taken the burger off the menu in affected areas.

At least one person has died after eating a McDonald's Quarter Pounder hamburger, believed to be the source of the outbreak. The fast food giant saw its share prices plummet 6% after the discovery.

At least one person has died after eating a McDonald's Quarter Pounder hamburger, believed to be the source of the outbreak. The fast food giant saw its share prices plummet 6% after the discovery.

McDonald's Quarter Pounders are making people sick with E. coli, the CDC said Tuesday.One person has died, and 10 others have been hospitalized after