Meanwhile, other fast-food restaurants — including Taco Bell, Pizza Hut, KFC and Burger King — pulled onions from some menus.

No source of the E. coli outbreak has been identified, but officials are focused on slivered onions used on the burgers.

Following an E. coli outbreak tied to McDonald’s Quarter Pounder burger, several major chains have pulled onions from their restaurants.

An E. coli outbreak linked to onions on McDonald's Quarter Pounders has spurred other fast food establishments to remove the ...

McDonald’s supplier Taylor Farms has recalled yellow onions produced in its Colorado plant out of what it said was an ...

A McDonald's spokesperson said Wednesday that the raw onions were sourced from a single supplier and processed at a single ...

The onions from McDonald's E. coli outbreak that affected dozens and killed one across 10 states have a local connection.

McDonald's is naming the supplier believed to be responsible for causing an E. coli outbreak linked to the company's Quarter ...

Yum! Brands (YUM) has taken precautionary measures by removing fresh onions from select locations of Taco Bell, Pizza Hut, ...