Table 1.

Steady states and their global stability conditions for model (5)–(10).

Steady state	Global stability conditions
$S{S}_0=(T_0,0,0,0,0,0)$	${\mathcal{R}}_0\le 1$
$S{S}_1=(T_1,L_1,I_1,V_1,0,0)$	${\mathcal{R}}_1^A\le 1<{\mathcal{R}}_0$, ${\mathcal{R}}_1^C\le 1$ and $d_T-r+\frac{r{T}_1}{T_{max}}>0$
$S{S}_2=(T_2,L_2,I_2,V_2,A_2,0)$	${\mathcal{R}}_1^A>1$, ${\mathcal{R}}_2^C\le 1$ and $d_T-r+\frac{r{T}_2}{T_{max}}>0$
$S{S}_3=(T_3,L_3,I_3,V_3,0,C_3)$	${\mathcal{R}}_1^C>1$, ${\mathcal{R}}_1^A\le {\mathcal{R}}_2^C$ and $d_T-r+\frac{r{T}_3}{T_{max}}>0$
$S{S}_4=(T_4,L_4,I_4,V_4,A_4,C_4)$	${\mathcal{R}}_1^A>{\mathcal{R}}_2^C>1$ and $d_T-r+\frac{r{T}_4}{T_{max}}>0$