via.kdvr.com
Cause determined after 647 Ohio Chipotle customers got sick
DENVER -- The latest illness outbreak to hit Chipotle involved at least 647 people who got sick after eating at the chain's Powell, Ohio, location. Health officials have now identified the problem: Stool samples from those sickened tested positive for Clostridium perfringens, a bacteria that forms when food is left at an unsafe temperature, CNBC reports.