The Snohomish Health District said Tuesday it has identified two cases of Shiga toxin-producing E. coli (STEC) in Snohomish County residents. Following public health interviews, these cases do appear to be connected to a cluster of STEC cases among seven children in King County.
Seattle King County Public Health is investigating a new cluster of seven children infected with Shiga toxin-producing E. coli (also known as STEC) in King County. All cases are currently under 15 years of age, and three are under 5 years of age. Cases have been reported during April 22–May 1, 2021.
Our investigation is ongoing. We have identified multiple types of fresh produce, mostly organic, in common among the majority of cases but cannot yet rule out other possibilities. We are still uncertain if these cases share the same source of their infection or not. Updates will continue to be posted when more information is available.
All 7 children developed symptoms consistent with STEC, including diarrhea (often bloody), abdominal cramping, nausea, and vomiting. Illness onsets occurred during April 17–29, 2021. Six children have been hospitalized; this includes two children who developed a type of kidney complication called hemolytic uremic syndrome (HUS) and both are recovering.
The local cases involve a woman in her 20s and a child under 10 years of age from separate households. The child has been hospitalized, but no further information will be shared on the cases due to patient privacy.