具有媒体报道和时滞效应的 SEIR 模型动力学分析.

The paper formulates a SEIR model with time delay effect to explain the influence of media reports on diseases. Firstly, the basic reproduction number of the model is determined by the method of next generation matrix. The existence and the global stability of the equilibrium point are discussed. Secondly, sufficient conditions of Hopf bifurcation of the model are given. Finally, by numerical simulation, we prove the correctness of the theories. [ABSTRACT FROM AUTHOR]