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研究了具有脉冲接种的多易感群体的DS-I-R传染病模型,分析了该模型无病周期解的存在性,给出了对疾病传播有重要影响的基本再生数,得到了无病周期解全局稳定性的充分条件.
The model of DS-IR epidemic with multi-susceptible population was studied. The existence of disease-free periodic solution of the model was analyzed. The number of basic regeneration that had an important impact on disease transmission was given. The disease-free periodic solution Sufficient conditions for global stability.