Fig. 2: Quantifying the serial interval, infectiousness profile, incubation period, and generation time fitted by gamma or Weibull distributions.

a Estimated distribution of the serial interval and of the infectiousness profile by gamma distributions based on 245 transmission pairs. b Estimated distribution of the incubation period by Weibull distributions and of the generation time by gamma distributions based on 268 confirmed cases with locally acquired infection belonging to 114 clusters.