DENVER - The Colorado Department of Public Health is investigating an E.coli outbreak that may be tied to three Jimmy John's sandwich shops in the metro area.
So far, eight people have confirmed cases of the E. coli 0157 bacteria. State officials said all eight cases have the same E. coli DNA fingerprint, meaning it is likely they got sick from the same source.
All eight people ate at a Jimmy John's between October 5 and 9, officials said. They all became sick between October 7 and 15.
Officials said other cases are under investigation, including one person who had to be hospitalized.
Since the outbreak, multiple produce items at Jimmy John's have been tested and all came back negative for E.coli, so officials believe there is no continuing transmission risk, according to state officials.
Officials also said no unsafe food handling practices were identified.