Since the last CDC update on December 4, one more ill person has been reported from Pennsylvania bringing the total to 53 in nine states.

Fifty-three people infected with the outbreak strain of E. coli O26 have been reported from nine states. The majority of illnesses have been reported from Washington and Oregon during October 2015. The number of ill people reported from each state is as follows: California (3), Illinois (1), Maryland (1), Minnesota (2), New York (1), Ohio (3), Oregon (13), Pennsylvania (2), and Washington (27). Among people for whom information is available, illnesses started on dates ranging from October 19, 2015 to November 14, 2015. Ill people range in age from 1 year to 94, with a median age of 21. Fifty-nine percent of ill people are female. Twenty (38%) people reported being hospitalized. There have been no reports of hemolytic uremic syndrome and no deaths.

CDC is investigating another, more recent outbreak of a different, rare DNA fingerprint of Shiga toxin-producing E. coli O26 linked to Chipotle Mexican Grill. Because it is not known if these infections are related to the larger, previously reported outbreak of E. coli O26 infections, these illnesses are not being included in the case count for that outbreak. This investigation is ongoing.

5 ill people have been identified in Kansas (1), North Dakota (1), and Oklahoma (3).

The illnesses started on dates ranging from November 18, 2015 to November 26, 2015.

All five (100%) reported eating at a Chipotle Mexican Grill in the week before illness started.

Sound familiar?

Seattle

When: July 2015

Sickened: 5 people

Culprit: E. coli O157:H7

Source: Unknown

Simi Valley, CA

When: August 2015

Sickened: At least 234

Culprit: Norovirus

Source: Ill worker

Minnesota

When: August and September 2015

Sickened: 64 people

Culprit: Salmonella Newport

Source: Tomatoes

CA, IL, MD, MN, NY, OH, OR, PA, WA

When: Began October 2015

Sickened: 53 people

Culprit: E. coli O26

Source: Unknown

Boston

When: December 2015

Sickened: At least 136 people

Culprit: Norovirus

Source: Ill worker