Stability of a Two-Strain Tuberculosis Model with General Contact Rate

Figure 7

Trajectories of system (2.2) when 𝛽₁(𝑁)=𝛽₁, 𝛽₂(𝑁)=𝛽₂, 𝛽₁=1, 𝛽₂=0.25, 𝑑₁=0.02, 𝑑₂=0.07, so that 𝑅₁>𝐻, 𝑅₂<𝑓(𝑅₁). It shows that the interior equilibrium 𝑃₂ is stable.