Table 2 Estimated incubation period and serial interval of confirmed COVID-19 patients in Shijiazhuang
Characteristic | Estimated incubation period (days) | Estimated serial interval (days) | ||
|---|---|---|---|---|
Mean (95%CI) | Parameters of Weibull distribution (shape, scale) | Mean (0.025th,0.975th) | Parameters of gamma distribution (shape, rate) | |
All | 11.6 (10.6, 12.7) | 2.75, 13.07 | 6.6 (0.6, 20.0) | 1.63, 0.25 |
Immediately confirmed cases | 10.6 (9.5, 11.7) | 2.82, 11.89 | 5.1 (0.5, 15.0) | 1.76, 0.34 |
Later becoming symptomatic cases | 15.8 (13.7, 17.8) | 4.35, 17.29 | 10.4 (1.7, 26.6) | 2.50, 0.24 |