Fig. 8.

Contour plots of the control reproduction number (${\mathcal{R}}_c$), as a function of vaccine coverage ($f_v$) and vaccine efficacy (${\epsilon }_v$) for (a) 10% mask compliance, (b) 30$\text{\%}$ mask compliance, and (c) 50$\text{\%}$ mask compliance. Parameter values used are as given in Table 3 with various values of $c_M$.