Chipotle E. Coli Outbreak Expands to Pennsylvania

An outbreak of E. coli linked to Chipotle restaurants has sickened seven more people and expanded to three additional states including Pennsylvania.

The Centers for Disease Control and Prevention says a total of 52 cases have now been reported in nine states, including Illinois, Maryland and Pennsylvania. The most recent illness started on Nov. 13, it said.

The CDC didn't specify where the Pennsylvania case occurred.

Most the illnesses have been in Oregon and Washington, where cases were initially reported at the end of October. Additional cases were later reported in California, Minnesota, New York and Ohio.

The CDC had said in late November that additional cases could be reported for illnesses that started after Oct. 31. Of the 52 people infected, the CDC says 47 reported eating at a Chipotle Mexican Grill in the week before the illness started. The agency has not yet determined the ingredient responsible.

Earlier Friday, Chipotle announced it was tightening its food safety standards.

The Mexican food chain said it hired IEH Laboratories in Seattle to help improve its system, and that new procedures will include testing of all produce before it is shipped to restaurants. It said it will also enhance employee training for food safety and handling.

Chipotle has not yet said how sales have been affected by the bad publicity from the E. coli outbreak, but said it would provide a financial update before its presentation at the Bernstein Consumer Summit on Tuesday. In October, the company had forecast sales at established locations would be up in the low- to mid-single digit percentages for 2015.

Chipotle said Friday it tested ingredients before, but that it is moving to testing smaller batches and a larger number of samples.

"In testing for pathogens, in many ways you're looking for needles in haystacks. Through this high resolution testing program, we are making the haystacks smaller by working with smaller lots," the company said.

It said that no ingredients that are likely to have been connected to the incident remain in its restaurants or supply system. 

Copyright AP - Associated Press
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