摘要
讨论了一类具有垂直传染且具有脉冲常量预防接种的SIR模型,获得了阈值R0,当R0<1时,得到了无病周期解的局部和全局渐近稳定性.
An SIR epidemic model with vertical transmission and impulse constant vaccination was considered.The threshold R0 is obtained,and prove the local and global asymptotic stability of periodic infection-free solution if R0<1.
出处
《中北大学学报（自然科学版）》
CAS
2007年第S1期1-3,共3页
Journal of North University of China(Natural Science Edition)
关键词
垂直传染
无病周期解
全局渐近稳定
vertical transmission
periodic infection-free solution
global asymptotic stability
