Fig. 7.

Outbreak control. Effect of basic reproduction number $R_0$. Increasing the basic reproduction number beyond one increases the maximum exposed and infectious populations $E_{max}$ and $I_{max}$. The converged susceptible and recovered populations $S_{\infty }$ and $R_{\infty }$ at endemic equilibrium converge towards zero and one. The time to reach the maximum infectious population reaches its maximum of 213 days at a basic reproduction number $R_0=1.22$ and decreases for increasing basic reproduction numbers. Latent period $A=5$ days, infectious period $C=20$ days, basic reproduction number, and initial exposed fraction $E_0=0.010$