Figure 8
From: A patchy theoretical model for the transmission dynamics of SARS-Cov-2 with optimal control

Simulation outcomes of the presented two patch COVID-19 mathematical model for case 2 under symmetric strong coupling (a) the number of infected humans in patch 1 (b) the number of infected humans in patch 2. In both figures, the red curves and blue curves represent the infected population, with optimal control and no optimal control respectively.