People in at least 14 states caught a nasty strain of E. coli from tainted onions used in McDonald's Quarter Pounders, though the immediate danger has likely now passed.

At least 104 people have been sickened, with 34 hospitalized, in an outbreak of E. coli food poisoning tied to onions served on McDonald’s Quarter Pounder hamburgers.

The number of people that fell ill from an E. coli outbreak linked to raw onions on McDonald's Quarter Pounders has topped 100, but the FDA says there no longer appears to be a risk.