摘要
建立了疾病的发生率为Sf(I,B)、病原的变化率为h(I,B)的出血热的传染病模型,得到了系统的基本再生数,给出了无病平衡点存在的充分必要条件,并指出当R0<1时,即使有感染者,疾病也不会在当地传播.
A hemorrhagic fever epidemic model with disease incidence rateSf(I,B) and pathogen change rateh(I,B) is con- structed, the basie reproduction number R0 is obtained, and then the necessary and sufficient conditions for the existence of disease- free equilibrium are given. The paper pointed out then, even if the infection, disease will not spread in the local.
出处
《渭南师范学院学报》
2013年第6期9-12,共4页
Journal of Weinan Normal University
基金
陕西省自然科学基金项目(2011JM1010)
关键词
出血热
基本再生数
无病平衡点
hemorrhagic fever
basic reproduction number
disease-free equilibrium