Fig. 3.

Global sensitivity analysis of the system parameters. Each parameter was varied over a range of $\pm 2$ fold from the baseline value. Partial ranked correlation coefficients (PRCC) sensitivity analysis $(p<0.00001)$ shows that the disease transmission coefficient, $\lambda ,$ is the most sensitive parameter. Baseline parameters are $\Lambda =1165,$$\omega =0.1924,$$\lambda =0.54,$$\gamma =0.095,$$\delta =3.37\times {10}^{-5},$$\mu =0.11$.