Fig. 8.

Contour lines representing the equilibrium values of symptomatic individuals ($I_s$) as functions of a $\Lambda$ and ${\beta }_1$, b ${\varphi }_h$ and ${\beta }_2$, c r and $r_0$, d $\lambda$ and $\delta$, e $c_{m_s}$ and p, f $c_{m_a}$ and p, g $M_0$ and ${\lambda }_0$, h ${\varphi }_s$ and ${\beta }_a$, and i ${\gamma }_a$ and $\theta$. Parameters are at the same values as in Table 2 except $\Lambda =100$, ${\beta }_1=0.000004$, ${\beta }_2=0.0000012$, $\lambda =0.0012$, $p=1200$, ${\lambda }_0=0.008$, $\sigma =0.19$, ${\gamma }_a=0.002$, $\delta =0.0005$, $d=0.00003518$, $r=0.01$, $r_0=0.005$, $M_0=500$. The figures clearly indicate that behavioral changes induced by propagation of awareness through social media advertisements can help to reduce the active symptomatic infections effectively