Rich Dynamics of an Epidemic Model with Saturation Recovery

Figure 5

Different initial states bring different results. The parameters are 𝐴=15000,𝛽=0.0005,𝑑=0.02,𝑏=0.01,𝜈=34,𝑐=7.16, and ℝ₀=0.50. The unit of time 𝑡 is day.

(a) The time course of 𝐼(𝑡) when 𝑆(0)=68075,𝐼(0)=400

(b) The time course of 𝐼(𝑡) when 𝑆(0)=68075,𝐼(0)=3