Global dynamics of a staged-progression model for HIV/AIDS with amelioration

被引:16
作者
Guo, Hongbin [1 ]
Li, Michael Y. [2 ]
机构
[1] York Univ, Dept Math & Stat, Toronto, ON M3J 1P3, Canada
[2] Univ Alberta, Dept Math & Stat Sci, Edmonton, AB T6G 2G1, Canada
基金
加拿大创新基金会;
关键词
Staged progression; HIV/AIDS; Amelioration; Basic reproduction number; Global stability; Lyapunov functions; MATHEMATICAL-ANALYSIS; HIV-INFECTION; TRANSMISSION; STABILITY; AIDS;
D O I
10.1016/j.nonrwa.2011.02.021
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We consider a mathematical model for HIV/AIDS that incorporates staged progression and amelioration. Amelioration as a result of HAART treatment is allowed to occur across any number of stages. The global dynamics are completely determined by the basic reproduction number R-0. If R-0 <= 1, then the disease-free equilibrium (DFE) is globally asymptotically stable and the disease always dies out. If R-0 > 1, DFE is unstable and a unique endemic equilibrium (EE) is globally asymptotically stable, and the disease persists at the endemic equilibrium. The proof of global stability utilizes a global Lyapunov function. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:2529 / 2540
页数:12
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