E. Coli Case Confirmed in Oregon Came From Washington Cheese, OHA Says

E. coli outbreak in Washington, Oregon linked to raw milk cheese

A recent string of E. coli cases in Washington and Oregon have been linked to cheese made from raw milk, according to the Washington Department of Health.

1 Oregon, 2 Washington residents test positive for E. coli related to unpasteurized cheese

The cheese was made by Twin Sisters Creamery Farmhouse in Washington.

3 people, including an Oregonian, test positive for E. coli linked to cheese from Washington

Two adults and a child tested positive for E. coli after eating unpasteurized aged cheese linked to a Washington cheese maker, according to the Oregon Health Authority.

E. coli case confirmed in Oregon came from Washington cheese, OHA says

PORTLAND, Ore. (KOIN) — A case of E. coli confirmed in Oregon came from a cheese produced at a Washington state creamery, the Oregon Health Authority announced on Friday. An Oregon resident was one of three people who tested positive for Shiga toxin-producing E. coli 0103 infection. That same pathogen was identified in laboratory-tested samples of leftover cheese obtained from the Oregon resident, who had consumed unpasteurized aged cheese from …

Twin Sisters Creamery Raw Milk Cheese O103 Outbreak in WA

Twin Sisters Creamery raw milk cheese has sickened at least three people; one in Washington and one in Oregon, with E. coli O103. One of the patients is a child under the age of five, and two are adults. Illness onset dates range from September 5 to September 16, 2025. The dairy is located in […] The post Twin Sisters Creamery Raw Milk Cheese O103 Outbreak in WA appeared first on Food Poisoning Bulletin.

E. coli Outbreak linked to Washington Cheese

Washington State Department of Health is working with local, state, Oregon Health Authority and federal public health partners to investigate Shiga Toxin-Producing E. coli (STEC) infections linked to consumption of aged, raw milk cheese. Two Washington residents and one Oregon resident have developed STEC infections caused by E. coli O103. Molecular fingerprinting of the bacteria from the three cases is extremely similar, suggesting a common sou…