Permanence and Extinction for a Nonautonomous Malaria Transmission Model with Distributed Time Delay

Figure 1

(a)–(e) show that system (3) with initial conditions (𝑆_𝑅(0),𝐼_𝑅(0),𝑆_𝐻(0),𝐼_𝐻(0),𝑅_𝐻(0))=(2,0.12,3,0.15,0.1) is permanent.