Fig. 5.

Effect of increased upper bound for the level of social distancing (${\eta }_{\mathit{max}}$) on the optimal control strategy $\eta \left(t\right)$. In this case, ${\eta }_{\mathit{max}}$ increases to 0.8. (a) Optimal social distancing level with ${\eta }_{\mathit{max}}=0.8$. (b) Corresponding daily incidences of infection without controls and with optimal social distancing strategy.