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本文研究了具有非线性接触率和恢复类中具有分布时滞的ＳＩＲＳ流行病 模型的解的存在性和连续性，正不变集，平衡位置以及平衡位置的稳定性。
In this paper, we study the existence and continuity of solutions, positive invariant sets, equilibrium positions and the stability of the equilibrium position for SIRS epidemic models with nonlinear contact rates and recovery delays.