Table 1.

Parameters' values of the improved SEIR model.

Parameter	Definitions	Value
i	Isolation ratio	1.8887 × 10−7
β'	Transmission probability	2.1011 × 10−8
c	Contact rate	2
ρ	Effective contact coefficient	0.8
α'	The proportion conversion ratio of exposed people to infectious people	1/7
r	The rate of isolation release	1/14
b	The proportion of people with symptoms	0.86834
μI	The rate at which infectious people with symptoms turn into isolated infectious people	0.13266
μi	The rate at which isolated exposed people turn into isolated infectious people	0.1259
ωa	The rate at which asymptomatic infected people convert to recovered people	0.13978
ωs	The rate at which symptomatic infected people convert to recovered people	0.33029
ωh	The rate at which inpatients convert to recovered people	0.46634
d	Death rate	1.7826 × 10−5
τ1	The infection intensity in the exposed people compared to symptomatic infected people	1
τ2	The infection intensity in the asymptomatic infected people compared to symptomatic infected people	1

Initial values	Definitions	Value
S(0)	Initially unisolated susceptible individuals	11,081,000
E(0)	Initially unisolated exposed individuals	105.1
Ia(0)	Initially asymptomatic infected individuals	53.839
Is(0)	Initially symptomatic infected individuals	27.679
R(0)	Initially recovered individuals	2
Si(0)	Initially isolated susceptible individuals	739
Ei(0)	Initially isolated exposed individuals	1.1642
H(0)	Initially hospitalized patients	1