Table 1.

The parameters of the COVID-19 model (1)

Parameter	Description
$\beta$	Effective transmission coefficient
${\epsilon }_1$	Modification parameter for a reduced transmission from asymptomatic humans
${\epsilon }_2$	Modification parameter for a more reduced transmission from hospitalized class
$\alpha$	Rate of disease progression from exposed class
$l_1$	Proportion of exposed with symptoms after the incubation period
$1-l_1$	Proportion of exposed without symptoms after the incubation period
$h_1$	Hospitalization rate for symptomatic class
$h_2$	Hospitalization rate for asymptomatic class after confirmation
$r_1$	Recovery rate for symptomatic class
$r_2$	Recovery rate for asymptomatic class
$\gamma$	Recovery rate for hospitalized class
${\delta }_1$	Disease-induced mortality rate for symptomatic class
${\delta }_2$	Disease-induced mortality rate for hospitalized class