Table 2.

The parameters applied for SEIR model of COVID-19.

Parameters	Estimates	Reference
The proportion of asymptomatic case	0.20	Buitrago et al.,8
Progression rate (β, 1/incubation period)	0.1428	Backer et al.,9
Resistant rate (σ, 1/infectious period)	0.20	Woelfel et al.,10
Transmission rate (α)
Italy (First period)	$1.51\times$10−8 (R0 = 6.37)	Estimated
Italy (Second period)	$7.19\times$10−9 (R0 = 3.04)
Wuhan, China (First period)a	$3.15\times$10−8 (R0 = 5.07)
Israel (First period)	$1.07\times$10−7 (R0 = 6.80)
Israel (Second period)	$3.79\times$10−8 (R0 = 2.40)
Relative transmission rate of asymptomatic case compared to symptomatic case	0.35	Buitrago et al.,8

Abbreviations: S, susceptible; E, exposed; I, infected; R, recovered.

^aThe parameter was used for simulate the dynamic of SEIR in Taiwan.