Table 11.

Peak values of infective at $t=20$.

Cases	Peak values for initial conditions				Reproductive number
	$(i)$	$(\mathit{ii})$	$(\mathit{iii})$	$(\mathit{iv})$
1	$0.891$	$0.891$	$11.90$	$0.632$	$2.83$
2	$0.942$	$0.942$	$11.60$	$0.665$	$2.64$
3	$0.742$	$0.742$	$10.90$	$0.521$	$2.58$
4	$0.975$	$0.942$	$11.20$	$0.687$	$2.64$