摘要:A non-linear mathematical model with non-integer order γ, 0 1 $\mathcal{R}_( > 1$ , F 0 $\mathcal{F}_($ is not stable, the endemic equilibrium (EE) F ∗ $\mathcal{F}^{*}$ exists, and it is an attractor. Numerical examples of the proposed model are also proven to study the behavior of the system.