Assessment of SARS-CoV-2 Infection Prevalence in Homeless Shelters — Four U.S. Cities, March 27–April 15, 2020 Published on 2020-05-012022-10-30 Journal: Morbidity and Mortality Weekly Report [키워드] assessment SARS-CoV-2 [Category] COVID-19, MERS, SARS, PMC URL [DOI] 10.15585/mmwr.mm6917e1 [Article Type] Full Report [Source] PMC All Keywords 【제목키워드】 SARS-CoV-2, assessment,