mcdonald's corp. - MCD

The U.S. Food and Drug Administration says the E. coli outbreak linked to McDonald's Quarter Pounders has expanded to 90 cases, with 27 hospitalizations and one death.

The E. coli outbreak linked to McDonald's Quarter Pounders has sickened dozens across 13 states, according to the Center for Disease and Control's latest figures.

McDonald's Quarter Pounders will return to the menu at locations where sales of the hamburgers had been paused amid an E. coli outbreak, after beef was ruled out as the source.

McDonald's E. coli outbreak spanned 13 states, impacting over 70 people as of Friday as the fast food giant works with food regulators to make sure the source of the contamination is under control.

The number of people reported being sick or hospitalized in the E. coli outbreak linked to McDonald's Quarter Pounder hamburgers has increased, the CDC said Friday.

The Food and Drug Administration is investigating Taylor Farms out of Salinas, California, for their onions, which may be linked to the recent McDonald's E. Coli outbreak across the country.

Taco Bell, Pizza Hut and KFC parent Yum! Brands is following McDonald's in removing fresh onions from some locations amid an E. coli outbreak that is still under investigation.

A Colorado man has filed the first of what is expected to be multiple lawsuits against McDonald's over an E. coli outbreak linked to the fast-food chain's Quarter Pounder hamburgers.

O’Leary Ventures chairman Kevin O'Leary warns that McDonald's should tell the public all available information regarding its E. coli outbreak and that "everything gets out" eventually.

McDonald's and multiple government agencies are still investigating the source of an E. coli outbreak linked to Quarter Pounders after 49 people reported getting sick and one died.