USA – Another Seattle area E. coli O157 Outbreak

Food Poison Journal

Public Health is investigating an outbreak of three people infected with Shiga toxin-producing E. coli O157:H7 (also known as STEC). Between October 4 – 16, 2022, 3 people from 3 separate households reported becoming ill. Cases have been among people ranging in age from 18 to 36 years old. Symptoms reported include diarrhea and abdominal pain.

The investigation is ongoing, and no source has been identified. Two of the three ill people report eating dishes that were prepared with raw or undercooked beef but we cannot rule out other possible sources at this time.

Confirmed cases have been linked through genetic fingerprinting results (whole genome sequencing) which indicate that they have the same genetic strain, meaning they likely have a common source of infection.

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