Dynamics of a Stochastic SIS Epidemic Model with Saturated Incidence

Figure 3

Computer simulations of 𝐼(𝑡) for model (5) (red line) and the deterministic model (1) (blue line), using the EM method with step size 0.001 and with initial values (a) 𝐼(0)=80 and (b) 𝐼(0)=10. 𝐼=10 and 𝐼=95.2938.

(a)

(b)