Quarter Pounders served in McDonald's restaurants were the reported source of an E. Coli outbreak that has killed one diner, and Reuters now reports that dozens more are sick across the U.S. In Colorado alone 26 people are ill after eating them,

Ten people have been hospitalized and one older person in Colorado has died after E. coli infections linked to consuming McDonald's quarter pounder hamburger, the US Centers for Disease Control said on Tuesday.

The CDC is investigating an E. coli outbreak that has sickened 49 people in 10 states, including one person who has died.

By Ananya Mariam Rajesh (Reuters) -Shares of McDonald's fell nearly 6% in premarket trading on Wednesday after an E. coli outbreak linked to the restaurant chain's Quarter Pounder hamburgers resulted in the death of one person and sickened 49 people in the U.

Hi, it’s Gerry in New York. McDonald’s just became the latest fast-food restaurant to be linked to E coli. Such events can be damaging for companies, but especially devastating to people who get sick.

McDonald's shares sank in premarket trading after the CDC said the chain's hamburgers were linked to an E. coli outbreak that has sickened at least 49 people and killed one. Read more: