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建立了带有免疫和传染年龄的传染病模型,这种传染病带有病原体Ⅰ或Ⅱ,病原体Ⅰ可发展为病原体Ⅱ,得到了无病平衡态全局稳定和局部稳定的条件.当病原体Ⅰ不发展为病原体Ⅱ时,得到了病原体Ⅰ类平衡态的稳定性依赖于病原体Ⅱ类的基本再生指数.
A model of infectious disease with immune and age of infection is established, which has pathogen I or II, pathogen I can develop into pathogen II, and the disease-free equilibrium global stability and local stability are obtained. When pathogen I is not When developed as pathogen II, the stability of the pathogen class I equilibrium is dependent on the basic regeneration index of pathogen class II.