摘要
建立一类具有饱和传染率的脉冲免疫接种SIR模型,结合具有常数移民和垂直传染的情况对模型进行分析研究,得到无病周期解,给出此周期解的全局稳定性分析,并获得系统一致持续生存的条件。
An SIR epidemic disease model with saturated incidence rate and pulse vaccination is constructed. Based on analysis of the model in constant recruitment and vertical transmission conditions, an infection-free periodic solution is obtained, and the analysis of global stability of the infection-free periodic solution is given. Also, the sufficient condition for permanence of the system is obtained.
出处
《山东大学学报(理学版)》
CAS
CSCD
北大核心
2009年第5期67-73,共7页
Journal of Shandong University(Natural Science)
基金
山东科技大学"春蕾计划"基金资助项目(2008BWZ076)
关键词
垂直传染
脉冲免疫接种
周期解
全局渐近稳定性
持久性
vertical transmission
pulse vaccination
periodic solution
global asymptotic stability
permanence