Fig. 9.

Contour plot of the quarantine reproduction number (${\mathcal{R}}_0^Q$), as a function of modification parameter for reduction of infectiousness of quarantined-infected individuals (${\eta }_Q$) and contact rate during quarantine ($k_Q^Q$). Parameter values used are as given in Table 1, with $b=0.054$, $k=9.3$, ${\eta }_T=0.7176$, ${\eta }_D=2.748$, $p=0.6784$, $v=0.4764$, $m=0.8578$, $w=1.3578$, $f=1.276$ and $d=0.00054$.