Optimal control for an age-structured model for the transmission of hepatitis B

被引:0
作者
Ramses Djidjou Demasse
Jean-Jules Tewa
Samuel Bowong
Yves Emvudu
机构
[1] University of Yaounde 1,Faculty of Science
[2] University of Yaounde 1,National Advanced School of Engineering
[3] University of Douala,Faculty of Science
[4] UMI 209 IRD&UPMC UMMISCO,The African Center of Excellence in Information and Communication Technologies (CETIC)
[5] LIRIMA,undefined
[6] Project Team GRIMCAPE,undefined
[7] University of Yaounde 1,undefined
来源
Journal of Mathematical Biology | 2016年 / 73卷
关键词
HBV; Age structure; Non-linear dynamical system ; Stability; Optimal control; 35Q92; 49J20; 35B35; 92D30;
D O I
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中图分类号
学科分类号
摘要
One of the characteristics of HBV transmission is the age structure of the host population and the vertical transmission of the disease. That is the infection is transmitted directly from infected mother to an embryo, fetus, or baby during pregnancy or childbirth (the perinatal infection). We formulated an age-structured model for the transmission dynamics of HBV with differential infectivity: symptomatic and asymptomatic infections. The model without intervention strategies is completely analyzed. We compute the basic reproduction number which determines the outcome of the disease. We also compute equilibria and study their stability. The sensitivity analysis of the initial model parameters is performed (to determine the impact of control-related parameters on outbreak severity). Using optimal control theory, we determine the cost-effective balance of three interventions methods which minimizes HBV-related deaths as well as the costs associated with intervention.
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页码:305 / 333
页数:28
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