Table 2.

Estimated model parameters and their 95% CIs for COVID-19 outbreak in Wuhan with updated data [12]

$p_{\mathit{inf}}$	Without asymptomatic infection		With asymptomatic infection
	Baseline	Earlier	Baseline	Earlier
Confirmed cases, Wuhana
${\theta }_1$	0.579 (0.556, 0.599)	0.582 (0.563, 0.602)	0.635 (0.612, 0.659)	0.664 (0.640, 0.690)
${\theta }_2$	0.126 (0.122, 0.130)	0.121 (0.117, 0.125)	0.183 (0.179, 0.189)	0.137 (0.133, 0.142)
$R_0$	2.81 (2.76, 2.86)	2.70 (2.65, 2.75)	4.15 (4.07, 4.24)	2.73 (2.68, 2.79)
Days after intervention to $R_{\mathit{eff}}<1$	3.85	3.74	5.29	4.35

Shorter incubation period assumption used

^aSee the results from cases outside Wuhan in the Supplementary Material