Estimating the Latent Period of Coronavirus Disease 2019 (COVID-19).

Xin, Hualei; Li, Yu; Wu, Peng; Li, Zhili; Lau, Eric H Y; Qin, Ying; Wang, Liping; Cowling, Benjamin J et al. · Clin Infect Dis · 2022

retrospective_cohort · Level III

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Abstract

Using detailed exposure information on COVID-19 cases, we estimated the mean latent period to be 5.5 (95% CI: 5.1-5.9) days, shorter than the mean incubation period (6.9 days). Laboratory testing may allow shorter quarantines since 95% of COVID-19 cases shed virus within 10.6 (95% CI: 9.6-11.6) days of infection.

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