In this paper, the existence of infinite period bifurcation of a nonlinear communicable disease model with temporary immunity (SIRS) is studied, and we give global bifurcation of the system.
本文讨论了一个具有暂时免疫的非线性SIRS传染病模型的无限周期分枝的存在性，从而给出了该系统的整体分枝。
It becomes one of the hot issues to analyse and study the infectious disease dynamic model. Two kinds of SIRS infectious disease models with vertical infection were constructed in the article.
传染病动力学模型的分析与研究是当今的热点问题之一，本文构造了两类具有垂直传染的SIRS传染病模型。
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