Asymptomatic transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may be a major contributing factor in skilled nursing facility (SNF) outbreaks. However, limited knowledge exists regarding the prevalence of asymptomatic and presymptomatic infection in this setting. Although an estimated 40% to 45% of SARS-CoV-2 infections in the general population are asymptomatic at time of testing,1 a small number of US and international reports have documented higher asymptomatic rates in SNFs.2-5 We examined asymptomatic and presymptomatic infection rates in a large multistate sample of US SNFs, and examined variation in case counts by SARS-CoV-2 prevalence in the counties where SNFs are located.



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Citation: White EM, Santostefano CM, Feifer RA, et al. Asymptomatic and Presymptomatic Severe Acute Respiratory Syndrome Coronavirus 2 Infection Rates in a Multistate Sample of Skilled Nursing Facilities. JAMA Intern Med. Published online October 19, 2020. doi:10.1001/jamainternmed.2020.5664