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一类具有感染年龄SIRS模型的分析
Analysis of SIRS Model with Infection-age
【摘要】 根据乙肝的传播特点,通过假设感染率依赖于个体的生理年龄及感染年龄.接种免疫有一定的有效期,建立了具有生理年龄和感染年龄的模型,并研究了地方病平衡点的存在条件.
【Abstract】 Based on the infection characteristics of Hepatitis B,assuming that infection rate depends on individuals’s chronological-age and infection age and that the vaccination has definite,a mathematical model with chronological-age and infection-age was developed.The existence of endemic steady state are studied.
【关键词】 接种免疫;
感染年龄;
生理年龄;
地方病平衡点;
【Key words】 vaccination; Infection-age; chronological-age; endemic steady state;
【Key words】 vaccination; Infection-age; chronological-age; endemic steady state;
【基金】 河南省科技计划项目(092300410185,112300410245)
- 【文献出处】 数学的实践与认识 ,Mathematics in Practice and Theory , 编辑部邮箱 ,2012年16期
- 【分类号】R181.3
- 【下载频次】78