A Mathematical Study of a TB Model with Treatment Interruptions and Two Latent Periods

Figure 5

Simulation results showing the effects of treatment and treatment interruptions. The green dash-dotted line, the red dashed line, and the blue solid line correspond to no treatment of active TB cases, treatment of active TB cases only, and treatment of active TB cases and treatment interruptions, respectively. 𝑑₃=0.35, 𝛽₂=0.0000004, 𝛾=0.2, 𝑟=0.5, and 𝜉=0.06. Other parameter values can be found in Table 1. And Δ₃=−0.1275<0.