Chipotle E. Coli Outbreak Hits Kansas, Oklahoma, and North Dakota

Chipotle's public health scare saga continues. This afternoon the CDC confirmed that five additional people have fallen ill after eating at Chipotle restaurants in three states not previously named as part of the outbreak: Kansas, Oklahoma, and North Dakota. Additionally, one more person has fallen ill in Pennsylvania, and reported that they ate at an affected Chipotle location after November 14, which is when the last outbreak in the Eastern side of the U.S. was confirmed.

Because these new illnesses may not be related to the outbreak that began in October, the CDC is treating and investigating this outbreak separately. Chipotle believes the two outbreaks are related. Chipotle spokesperson Chris Arnold told Fortune: "We have indicated before that we expected that we may see additional cases stemming from this." Chipotle is working with authorities to uncover the source of the outbreak.

The most recent infections began between November 18 and November 26. The total number of people that have fallen ill after encountering a strain of E. coli (Escherichia coli O26 (STEC O26) at a Chipotle location since October has settled at 53. A single source for the outbreak has not been found.

Chipotle has not yet released a statement about the latest CDC report, and is still dealing with the repercussions from the original outbreak as well as one in Massachusetts that left over 65 people sick with norovirus, not E. coli. Chipotle (CMG) is down nearly 20 points in light of the latest news.