Nearly 50 people have become ill and one person has died, amid infections that may have been caused by slivered onions, the C.D.C. reported.

Infections were reported between Sept. 27 and Oct. 11 in Colorado, Iowa, Kansas, Missouri, Montana, Nebraska, Oregon, Utah, Wyoming and Wisconsin.

E. coli food poisoning linked to McDonald’s Quarter Pounder hamburgers has sickened at least 49 people in 10 states, including one person who died and 10 who were hospitalized, federal health officials said Tuesday. The death was reported in an older person in Colorado, and one child has been hospitalized with severe kidney complications, the […]

McDonald's Quarter Pounders are making people sick with E. coli, the CDC said Tuesday.One person has died, and 10 others have been hospitalized after

The CDC said an E. coli outbreak linked to McDonald's Quarter Pounder burgers has led to 10 hospitalizations and one death.

The CDC said the number of illnesses is likely much higher and recent illnesses may not have been reported yet. Burgers in affected areas may be temporarily unavailable.

Shares of McDonald’s plummeted in extended trading on Tuesday after U.S. health authorities said they were investigating an E. coli outbreak possibly linked to the burger chain’s Quarter Pounder.

A McDonald's Quarter Pounder burger has been making people unwell in the US following an outbreak of E. Coli in some US states.

The fast food chain has pulled some of the burger’s ingredients across multiple states as officials try to pin down what specific ingredient is contaminated.

At least 49 illnesses have been reported across 10 states, including one death of an older person.

The death was reported in an older person in Colorado, and one child has been hospitalized with severe kidney complications.

The US Centers for Disease Control and Prevention announced a food safety alert for E.Coli after one person was killed and ten others hospitalized after eating McDonald's Quarter Pounders. Nearly 50 others reported illnesses across ten states, with most cases in Colorado and Nebraska.

E. coli food poisoning linked to McDonald’s Quarter Pounder hamburgers has sickened at least 49 people in 10 states, including one person who died and 10 who were hospitalized, federal health officials said Tuesday.