INCUBATION TIME of #COVID19: Up to 24 days! Whoa. A ceiling of 24 day incubation means the 14 day quarantine/ for returning travelers maybe not enough 
- This needs more confirmation. Past studies found ~5-7 day mean, but with large range / wide variance. (Caution: pre-print)https://twitter.com/Laurie_Garrett/status/1227455758423470080 …
I think this is the most credible data we have on incubation period. He was infectious at a minimum of 1 day after contracting the virus (Jan 23 infected, Jan 24 infect) and took up to 17 days to be sick enough to go to hospital (Jan 20 to feb 6).pic.twitter.com/dXvvRZGEUA
