Table 3: The sensitivity indices of the state variables at the endemic equilibrium, , to the parameters, , for parameter values given in Table 1.

0.998946 1.50275 0.00011 −0.00108296 0.516688 1.45019 −0.00401088 1.91363 2.57621 0.00314305 −1.49958 −1.30657 −0.00302661 1.44402 1.25817 −0.000984278 0.469608 1.31805 −0.000116517 0.0555912 0.0484363 0.00194365 −0.927333 −0.80798 6.33734 × 10−6 −0.0030236 −0.00263445 0.0000407045 −0.0194205 −0.0545075 −0.998946 −1.50279 −1.30937 0.00206723 −0.986295 −2.76823