King County health officials are trying to figure out the source of salmonella that has made seven people sick after tracing the bacteria to food prepared in a Costco deli.
The people had fallen ill “sporadically” over a period of nearly 11 months, starting in August 2017, the county’s health department said Wednesday in a statement posted on its website. All suffered from an identical genetic strain of salmonella, “suggesting a common source of infection,” the statement said. They’ve all since recovered.
All seven people had shopped at Costco’s Issaquah store, including five who bought ready-to-eat food from the deli. One person’s food-purchase history couldn’t be determined, while another infected person was an employee at that deli. There’s no evidence that the employee was the source, the statement said.
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