press release

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DENVER -- November 20, 2015 - Chipotle Mexican Grill (NYSE: CMG)

continues to work closely with state and federal health officials, as the

investigation continues into an E. coli incident initially linked to 11 Chipotle

restaurants in Washington and Oregon.

The Centers for Disease Control and Prevention (CDC) reduced the number

of cases connected to Chipotle from 50 to 37 cases on November 18 (with

24 in Washington and 13 in Oregon).

This reduction of nearly 25% was based upon more sensitive testing which

revealed the cases were not related to Chipotle. The CDC has informed

Chipotle that it identified six additional cases in which initial testing matches

the E. coli strain involved in the Washington and Oregon incident.

Although one of the individuals has no known link to Chipotle, five

individuals did report eating at Chipotle, including two in Turlock, Calif., one

in Akron, Ohio, one in Amherst, NY, and one in Burnsville, Minn.

Investigators have suggested that in incidents like this, it is not unusual to

see additional cases after the initial incident as the investigation moves

forward.

The source of the problem appears to have been contained during a period

in late October. Forty-two of the 43 cases linked to Chipotle, reported

visiting one of the restaurants in question between October 13 and October

30. One person reported having eaten November 6.

In response to this incident, Chipotle has taken aggressive steps to make

sure its restaurants are as safe as possible. There have been no reported

new cases in Washington or Oregon since Chipotle put its remediation plan

into effect.

Specifically, the company conducted deep cleaning at the restaurants that

have been linked to this incident, replacing ingredients in those restaurants,

changing food preparation procedures, providing all necessary supply chain

data to investigators, and surveying employees to be sure none have had

any symptoms of illness (note: no Chipotle employees in any states have

been ill related to this incident). Similar actions are immediately being taken

in response to these newly reported cases.

Chipotle is also taking significant steps to be sure all of its food is as safe as

possible. Specifically, the company is expanding testing of key ingredients,

examining all of its food-safety procedures to find any opportunity for

improvement, and is working with two renowned food safety scientists to

assess all of its food safety programs, from the farms that provide its food to

its restaurants.

"We take this incident very seriously because the safety of our food and

wellbeing of our customers is always our highest priority," said Steve Ells,

chairman and co-CEO of Chipotle. "We are committed to taking any and all

necessary actions to make sure our food is as safe as possible, and we are

working diligently with the health agencies."

"We offer our sincerest apologies to those who have been affected," said

Ells. "We will leave no stone unturned to ensure the safety of our food -

from enhancing the safety and quality assurance program for all of our fresh

produce suppliers, to examining all of our food safety procedures from farm

to restaurant, and expanding testing programs for produce, meat and dairy

items before they are sent to our restaurants."

According to the CDC, there are about 48 million cases of food-related

illness in the U.S. annually, including 265,000 cases of E. coli.

Chipotle founder Steve Ells published an open letter to customers last week

in the Seattle Post-Intelligencer, the Oregonian, USA Today and the New

York Times, about the issue.

"The idea that eating at any of our restaurants could cause anyone to

become ill is unacceptable to all of us at Chipotle," Ells wrote. "On behalf of

all of us, I'd like to offer our sincerest apologies and assure all of our

customers that we are doing everything possible to make our food as safe as

it can be."