Fig. 6.

(Color figure online) New Orleans Network of size 150, 000 individuals: the role of self-regulated SD in the spread of viruses. Time series are shown for four scenarios of no (${\sigma }_S=0$, black), low (${\sigma }_S=0.2$, blue), moderate (${\sigma }_S=0.4$, red), and high (${\sigma }_S=0.7$, green) self-regulated SD, in the absence of mandated SD. a plot is the prevalence of $V_1$ (solid) and $V_2$ (dashed); b shows the proportion of $V_2$ ($V_2/(V_1+V_2)$). ${\beta }_1={\beta }_2=0.2$ and all the other parameters are as in Fig. 1 (corresponding to ${\mathcal{R}}_0=2.5$). Means and standard errors are shown for 1000 stochastic realizations