Fig. 3.

Panel (a) shows the time path for the time-varying reproduction number, $\tilde{R}$. Panel (b) shows the fraction of the actively infected population over time under the temporary and extremely severe mitigation measures in the first 4 months. Panel (c) shows the fraction of the actively infected population over time under the temporary and extremely severe mitigation measures in the first 15 months. In panels (b) and (c), black solid line ($\omega =0$) corresponds to the no-reinfection scenario. The grey lines (ω > 0) correspond to the reinfection scenarios. The lines coincide in panel (b).