A preliminary investigation suggests raw slivered onions served on Quarter Pounders are a likely source of the outbreak.

McDonald’s U.S. President Joe Erlinger said in an interview on the “Today” show that the company has removed the Quarter ...

McDonald’s Corp. was accused of product liability, negligence, and breach of implied warranties in a lawsuit filed in ...

An E. coli outbreak linked to a popular McDonald’s menu item surged in 10 states, including Utah, according to the U.S.

The Colorado Department of Public Health and Environment suspects all McDonald's locations in the state "received ingredients ...

McDonald's has removed the Quarter Pounder from its menu in some states amid an E. coli outbreak. See what states are ...

McDonald’s Corp. is trying to contain the fallout from a severe E. coli outbreak that appears to be linked to the slivered onions in its popular Quarter Pounder sandwiches.

An E. coli outbreak has been linked to McDonald's Quarter Pounders, according to the Centers for Disease Control and ...

A preliminary investigation by the U.S. Food and Drug Administration suggests fresh onions that are served raw on McDonald's ...

One Mesa County resident is dead, and at least nine others are sick, from an outbreak of Shiga toxin-producing E. coli cases likely originating from McDonald’s Quarter Pounders.