Table 2.

Related parameters and initial values in Harbin

Parameter	Descriptions	Mean	STD	95% CI	Source
$\beta$	The transmission rate of	0.8403	0.0036	[0.8310, 0.8482]	Estimated
	COVID-19 per day
p	The found probability of	0.1128	0.0004	[0.1086, 0.1172]	Estimated
	infected people per day
${\gamma }_1$	The recovery rate of	0.1	–	–	[34]
	unfound infected people
${\gamma }_2$	The removed rate of	0.1	–	–	[34]
	found infected people
Initial values	Descriptions	Mean	STD	95% CI	Source
S(0)	Initial number of	163	0.1736	[158, 168]	Estimated
	susceptible people
I(0)	Initial number of	11	0.12	[8, 15]	Estimated
	unfound infected people
F(0)	Initial number of	4	–	–	Data
	found infected people
R(0)	Initial number of	0	–	–	Data
	removed people