Fig. 9.

In these graphics we present the active cases solutions for $t=2\tau$ (time in days), $D=1$, $\mathbf{x}={\mathbf{x}}^{\prime }$, ${\rho }_0=10^5$, $\kappa =0.06$, $s=1$, $\beta =10^7$, $n=2$, $z=50$, ${\tau }^{\prime }=47.5$, ${\tau }_1=40.5$, $\sigma =30$ (black solid curve), besides ${\tau }^{\prime }=55$, ${\tau }_1=48$, and $\sigma =90$ (red solid curve). The peaks of black and red curves are approximately $\text{329,000}$ and $\text{188,000}$ cases, respectively. We also depicted the active cases data from Brazil (blue dots), since February 26, 2020 until May 02, 2020 [27].