Table 2.

Parameters and their values

Parameter	Value	Source
${\delta }_i$	1/5.2	Referenced [15]
$\gamma$	1/14	Referenced [16]
$ϵ$	1/15	Assumed
${\delta }_i$ in targeted testing	1/4.8 when $4\le i\le 8$	Assumed
	1/5.4 when $i<4$ or $i>8$