本文讨论了一类具有接种疫苗时滞的两菌株传染病模型,给出了该模型基本再生数和侵入再生数的表达式,分析了平衡点的存在性和稳定性,得到了Hopf分支存在的条件.
A two-strain epidemic model with vaccination delay is investigated. The basic reproduction numbers and the invasion reproduction numbers were calculated. The existence and stability conditions of equilibria were discussed. The conditions for the existence of Hopf bifurcation for this model are given.