COVID-19 Outbreak Among Three Affiliated Homeless Service Sites - King County, Washington, 2020

On April 22, 2020, this report was posted as an MMWR Early Release on the MMWR website. On March 30, 2020, Public Health-Seattle and King County (PHSKC) was notified of a confirmed case of coronavirus disease 2019 (COVID-19) in a resident of a homeless shelter and day center (shelter A). Residents from two other homeless shelters (B and C) used shelter A's day center services. Testing for SARS-CoV-2, the virus that causes COVID-19, was offered to available residents and staff members at the three shelters during March 30-April 1, 2020. Among the 181 persons tested, 19 (10.5%) had positive test results (15 residents and four staff members). During March 30-April 1, SARS-CoV-2 testing was offered to all available residents and staff members at shelter A, as well as those at shelters B and C, which used shelter A's day services (testing event 1). Overall, 62.8% of residents who spent the previous night at each shelter were tested.