Bifurcation diagrams changing model parameters individually (
) while keeping all other parameters constant at the base model values (Figure
b). The vertical dashed line shows ; the solid curve represents the stable equilibrium and the dotted curve shows the unstable equilibrium; the point shows ; the light grey area shows the region of bistability– the area where malaria will persist, if endemic, but cannot invade; and the dark grey region shows where malaria can always invade and persist. In all of the bifurcation diagrams, ranged from 0 to 1.5 and varied accordingly, changing only transmission rates (τ
). (a)-(c) vary ρ
(a) The ratio is 1:2(b) The ratio is 2:1(c) The ratio is 4:1. (d)-(f) vary σ
σ=1. (g)-(i) vary π while keeping γ
π=0.33(j)-(l) vary γ
(j) clinically immune infections clear in 100 days (k) clinically immune infections clear in 200 days (l) clinically immune infections clear in 400 days.