(Reuters) -Ten people have been hospitalized and one older person in Colorado has died after E. coli infections linked to McDonald’s (NYSE:MCD) quarter pounder hamburger, the US Centers for Disease Control said on Tuesday.
Shares of McDonald’s were down 9.2% after the bell.
McDonald’s has proactively removed the slivered onions and beef patties used for the quarter pounder hamburgers from stores in the affected states while the investigation continues, the company informed the CDC.
Quarter pounders in some states may be temporarily unavailable, according to the CDC’s statement.
McDonald’s did not immediately respond to a Reuters request for comment.
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