The fast food giant's Quarter Pounder burgers have been linked to 49 E. coli infections and one death across 10 states.

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.