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. 2021 Jun 1;72(11):2018-2020.
doi: 10.1093/cid/ciaa1020.

Lessons From Mass-Testing for Coronavirus Disease 2019 in Long-Term Care Facilities for the Elderly in San Francisco

Janice K Louie  1   2 , Hyman M Scott  1   2 , Amie DuBois  1 , Natalya Sturtz  1 , Wendy Lu  1 , Juliet Stoltey  1   2 , Godfred Masinde  1 , Stephanie Cohen  1   2 , Darpun Sachdev  1 , Susan Philip  1   2 , Naveena Bobba  1 , Tomas Aragon  1   3 ; San Francisco Department of Public Health COVID-19 Skilled Nursing Facility Outbreak Response Team
Collaborators, Affiliations

Lessons From Mass-Testing for Coronavirus Disease 2019 in Long-Term Care Facilities for the Elderly in San Francisco

Janice K Louie et al. Clin Infect Dis. .

Abstract

Coronavirus disease 2019 can cause significant mortality in the elderly in long-term care facilities (LTCF). We describe 4 LTCF outbreaks where mass testing identified a high proportion of asymptomatic infections (4%-41% in healthcare workers and 20%-75% in residents), indicating that symptom-based screening alone is insufficient for monitoring for COVID-19 transmission.

Keywords: COVID-19; coronavirus; elderly; health care worker; infection control; mass testing; skilled nursing facility.

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