Mathematical Analysis of a Malaria Model with Partial Immunity to Reinfection
Figure 3
Backward bifurcation regions for the model (4) in the - parameter space corresponding to and various ranges of . Parameter values used are: ,. In (a) (backward bifurcation region for is , (b) (backward bifurcation region for is , and (c) (backward bifurcation region for is . With the above set of parameter values, , and .