Table 2.

Sensitivity index of model parameters.

Parameter	Sensitivity Index $\left({\mathcal{R}}_{01}\right)$	Parameter	Sensitivity Index $\left({\mathcal{R}}_{02}\right)$
$\mathrm{\Lambda }$	0.9999	$\mathrm{\Lambda }$	1
$\mu$	−1	$\mu$	−1
${\alpha }_1$	0.0031	${\alpha }_2$	0.0041
${\beta }_1$	0.9969	${\beta }_2$	0.9959
$\delta$	−0.0026	$\epsilon$	−0.0034
${\sigma }_1$	−0.0966	${\sigma }_2$	−0.1245
${\theta }_1$	−0.9	${\theta }_2$	−0.871