The strain of E. coli in the outbreak produces a toxin that can cause severe, life threatening complications. © Richard T.

Illnesses linked to slivered onions on McDonald's Quarter Pounder burgers expand to 14 states, federal officials say.

At least 104 people have been sickened, with 34 hospitalized, in an outbreak of E. coli food poisoning tied to onions served ...

A deadly E. coli outbreak connected to slivered onions served in McDonald's Quarter Pounder hamburgers across the country has ...

Fourteen new illnesses linked to the McDonald's E. coli outbreak were reported by the CDC and FDA Wednesday, bringing the ...

The number of people that fell ill from an E. coli outbreak linked to raw onions on McDonald's Quarter Pounders has topped ...

The source of the outbreak was likely slivered onions on McDonald's Quarter Pounder burgers, health officials have said.

On Wednesday, federal health officials reported that at least 104 people have fallen ill, with 34 requiring hospitalization, in an E. coli outbreak.

A multistate E. coli outbreak linked to onions served on McDonald’s Quarter Pounders has affected at least 104 people in 14 ...

The CDC reports 104 cases of E. coli linked to McDonald's Quarter Pounders due to contaminated onions, with one death and 34 ...