摘要
考虑了垂直传染和预防接种因素对传染病流行影响的SEIR模型,主要研究了系统平衡点的存在性及其稳定性,得到了预防接种水平的阈值,当预防接种水平超过这个阈值时疾病可以根除.
This study consider an SEIR epidemic model with vertical transmission and vaccination.This study mainly analyze the stability of the equilibrium,and get the threshold of immunization level,furthermore,show that the disease will be eradicated if the immunization level is greater than the threshold.
出处
《云南师范大学学报（自然科学版）》
2016年第2期27-33,共7页
Journal of Yunnan Normal University:Natural Sciences Edition
基金
国家自然科学基金资助项目(11471197)
关键词
静态网络
垂直传染
预防接种
平衡点稳定性
预防接种阈值
Static networks
Vertical transmission
Vaccination
Equilibrium stability
Vaccination threshold
