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.

A California-based produce company was the source of fresh onions linked to a deadly E. coli food poisoning outbreak at ...

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

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

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

The E. coli outbreak linked to McDonald’s Quarter Pounders has led to 75 illness across 13 states, including 22 ...

A Nebraska woman is the second person to file a lawsuit against McDonald's over an E. coli outbreak linked to the fast food ...

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, ...