As of November 5, 2015, 41 ill people have been reported from Washington (28) and Oregon (13).

Twelve people have been hospitalized: 10 in Washington and 3 in Oregon.

17 isolates from ill people in Washington and Oregon have been uploaded to the CDC PulseNet database. All 17 people were infected with Shiga toxin-producing Escherichia coli O26 (STEC O26) that has the same DNA fingerprint.