10:08 AM EDT, 10/23/2024 (MT Newswires) -- (Updates with the latest stock movement in headline and first paragraph along with the company's response in the fifth and sixth paragraphs.)

McDonald's (MCD) shares fell more than 5% in recent Wednesday trading after the US Centers for Disease Control and Prevention said Tuesday an E. coli outbreak in 10 states is linked to the company's Quarter Pounder burgers.

The E. coli outbreak has resulted in one death and 10 hospitalizations, the agency said.

Most sick people are reporting eating the burgers and the fast food restaurant chain is working with the investigators to confirm which food ingredient is contaminated, the CDC said.

McDonald's has stopped using some ingredients for the Quarter Pounder and the burgers will be temporarily unavailable in some states, the CDC added.

"The initial findings from the investigation indicate that a subset of illnesses may be linked to slivered onions used in the Quarter Pounder and sourced by a single supplier that serves three distribution centers," McDonald's North America Chief Supply Chain Officer Cesar Pina said in an internal message.

"As a result, and in line with our safety protocols, all local restaurants have been instructed to remove this product from their supply and we have paused the distribution of all slivered onions in the impacted area. Out of an abundance of caution, we are also temporarily removing the Quarter Pounder from restaurants in the impacted area, including Colorado, Kansas, Utah and Wyoming, as well as portions of Idaho, Iowa, Missouri, Montana, Nebraska, Nevada, New Mexico, and Oklahoma," Pina added.

Price: 296.59, Change: -18.10, Percent Change: -5.75