Bifurcation Analysis of an SIR Epidemic Model with the Contact Transmission Function

Figure 3

Bifurcation curves in (𝑎,𝐼) plane by fixed 𝐴=2,𝑑=0.1,𝛽=0.8,𝑏=2.4,𝜖=0.6,𝛾=0.2, where H denotes the Hopf bifurcation, LP is the limit point (flod) bifurcation.