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EXISTENCE AND UNIQUENESS OF ENDEMIC STATES FOR THE AGE-STRUCTURED SEIR EPIDEMIC MODEL

EXISTENCE AND UNIQUENESS OF ENDEMIC STATES FOR THE AGE-STRUCTURED SEIR EPIDEMIC MODEL
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摘要 An age-structured SEIR epidemic model of a vertically as well as horizontally transmitted disease is investigated. Threshold results for the existence of endemic states are established for most cases. Under certain conditions, uniqueness is also shown. Threshold used are explicitly computable in term of demographic and epiderniological parameters of the model.
出处 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2006年第1期114-127,共14页 系统科学与复杂性学报(英文版)
基金 Supported by the Natural Science Foundation of Henan Province(No.0312002000 and No.0211044800) the National Natural Science Foundation of China(No.10371105).
关键词 Age structure positive endemic state SEIR epidemic model threshold value vertical transmission. 年龄结构 SEIR模型 阈值 垂直传播 地方病
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