The Incubation Period of Coronavirus Disease 2019 (COVID-19) From Publicly Reported Confirmed Cases: Estimation and Application

Analysis of data from 181 confirmed COVID-19 cases outside Hubei province, China suggests median incubation period of 5.1 days (95% CI 4.5 to 5.8 days), and 97.5% of those who develop symptoms will do so within 11.5 days (CI 8.2 to 15.6 days) of infection.

Source:

Annals of Internal Medicine