In this period there were974outbreaks of communicable disease attributed to the consumption of raw milk.
在这段时期内发生了974起由于食用生牛奶而引起的传染性疾病。
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。
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。
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