Global Stability of Multigroup SIRS Epidemic Model with Varying Population Sizes and Stochastic Perturbation around Equilibrium

Figure 2

Stochastic trajectories of SIRS model (12) for 𝜎₁₁=0.4, 𝜎₂₁=0.73, 𝜎₃₁=0.45, 𝜎₁₂=0.5, 𝜎₂₂=0.67, 𝜎₃₂=0.5, and Δ𝑡=10⁻³.