Conclusion
The mean incubation period was estimated at 6.24 days 95% CI
[5.80;6.69], that fits well in the range of the recommended periods
by international health institutions. The COVID-19 situation is evolving
daily and there is a global need to ascertain an accurate definition of
the incubation period in order to better define cases and duration of
isolation measures including quarantine. Discrepancies among sources may
hamper case detection and the effectiveness of infection control
measures. Following this report, an online real-time analysis is now
provided on a website (InCovid-Lyon) [7].