Fig. 5

Simulations of model (1) with varying effects of parameters on total infected humans population \((E_{h}+I_{h})\): a transmission probability from humans to humans \(\beta _{h}=0.084 ({\mathcal {R}}_{0}=1.91)\), \(\beta _{h}=0.042 ({\mathcal {R}}_{0}=1.25)\), and \(\beta _{h}=0.021 ({\mathcal {R}}_{0}=0.92)\); b recovery rate of humans \(\phi _{h}=0.123 ({\mathcal {R}}_{0}=1.91),\) \(\phi _{h}=0.062 ({\mathcal {R}}_{0}=1.90)\), \(\phi _{h}=0.031 ({\mathcal {R}}_{0}=1.89)\); Other parameter values used are as given in Table 2