Chipotle E. coli outbreak broadens to nine states, shares drop

Everyone's Freaking Out About E. Coli

The E. coli outbreak linked to Chipotle Mexican Grill Inc has expanded to nine states, with 47 of the 52 people affected having reported eating at the popular burrito chain.

Shares in Chipotle slid more than 3 percent and then pared losses, down 2.2 percent at $552.74.

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The source of the E. coli O26 outbreak is still unknown, the U.S. Centers for Disease Control and Prevention said.

The seven new cases came from California, Illinois, Maryland, Ohio, Pennsylvania, and Washington. Two of the illnesses started in October, and five started in November 2015, suggesting that the outbreak was not as short lived as previously thought.

Of the three most recent illnesses reported in November, only one ill person reported eating at Chipotle in the week before their illness began, CDC said.

(Reporting by Lisa Baertlein in Los Angeles; Editing by David Gregorio)

History of previous E. coli outbreaks in the United States:

E. coli cases and food poisoning
See Gallery
Chipotle E. coli outbreak broadens to nine states, shares drop
BOSTON - AUGUST 23: Colony of E. coli cells are grown in the synthetic biology lab at Harvard Medical School in Boston on Tuesday, August 23 2011. (Photo by Wendy Maeda/The Boston Globe via Getty Images)
ELIOT, ME - MAY 26: Kyler Dove, a seventh grader at Marshwood Middle School in Eliot, stops to take a drink from one of the 11,520 water bottles donated to the school Tuesday, May 26, 2015 by Cumberland Farms. Home Depot and Hannaford have also made donations to the school as it manages the current E coli scare. (Photo by Jill Brady/Portland Press Herald via Getty Images)
PORTLAND, OR - MAY 23: A shopper looks for bottled water on nearly empty shelves at a New Seasons Supermarket May 23, 2014 in Portland, Oregon. Oregon health officials ordered Portland to issue a boil-water alert after three separate samples tested positive for E. coli, a bacterium that can cause severe gastrointestinal illness. (Photo by Natalie Behring/Getty Images)
Jack Kurtz, 10, right, and mother Paula Gillett pose for portrait in their Rockford, Illinois home, November 5, 2009. Jack recovered from a food-borne illness last year. The source of the E. coli that hospitalized him was never determined. (Photo by Lane Christiansen/Chicago Tribune/MCT via Getty Images)
Madison Sedbrook, 6, right, and her mother Cindy are in their home at Highlands Ranch on Tuesday. Madison's parents are suing because she got e coli from eating raw cookie dough recalled by Nestle. Hyoung Chang/ The Denver Post (Photo By Hyoung Chang/The Denver Post via Getty Images)
PHILADELPHIA - FEBRUARY 21: A BJ's Wholesale Club awaits customers on February 21, 2007 in Philadelphia, Pennsylvania. Yesterday, the giant wholesaler announced a voluntary recall of prepackaged Wellsley Farms mushrooms, due to possible trace amounts of E.coli. No cases of the illness have been reported. (Photo by Jeff Fusco/Getty Images)

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