References
- Arons MM, Hatfield KM, Reddy SC, et al. Presymptomatic SARS-CoV-2 infections and transmission in a skilled nursing facility. N Engl J Med. 2020;382(22):2081–2090. doi:10.1056/NEJMoa2008457.
- Wölfel R, Corman VM, Guggemos W, et al. Virological assessment of hospitalized patients with COVID-2019. Nature. 2020;581(7809):465–469. doi:10.1038/s41586-020-2196-x.
- Gandhi M, Yokoe DS, Havlir DV. Asymptomatic transmission, the achilles’ heel of current strategies to control Covid-19. N Engl J Med. 2020;382(22):2158–2160. doi:10.1056/NEJMe2009758.
- Kucirka LM, Lauer SA, Laeyendecker O, Boon D, Lessler J. Variation in false-negative rate of reverse transcriptase polymerase chain reaction–based SARS-CoV-2 tests by time since exposure. Ann Intern Med. 2020;173(4):262–267. doi:10.7326/m20-1495.
- CDC. People who are at higher risk for severe illness. https://www.cdc.gov/coronavirus/2019-ncov/need-extra-precautions/people-at-increased-risk.html. Published 2020. Accessed June 25, 2020.