Fig. 20.

The region for which final epidemic sizes increase as a result of social distancing, for various transmission rates: The same model and recovery rate as those in Fig.  (18), initial condition $y_{10}=0.001$, $y_{20}=0.0001$ ($\frac{y_{20}}{y_{10}}=0.1$), and various transmission rates are used. The left column shows the region of SD parameter values, for which final epidemic size of $V_2$ increases with increasing mandated SD. The right column shows the region of SD parameter values, for which total final epidemic size increases with increasing self-regulated SD