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Stability Of A Nonlinear Viral Infection Model With Both Virus-to-Cell And Cell-to-Cell Transmissions

Posted on:2018-01-31Degree:MasterType:Thesis
Country:ChinaCandidate:J WangFull Text:PDF
GTID:2310330536982382Subject:Applied Mathematics
Abstract/Summary:PDF Full Text Request
HIV is a human immunodeficiency virus,is a contagious virus.HIV virus transmission is very extensive,in the previous study,taking into account the situation without time or linear incidence of HIV virus model on the work of a lot of work,but also consider the cell interference cells and virus-infected cells infection mechanism Work is rare.In this paper,we study this in depth.In this paper,we consider a viral infection model of both cell-to-cell and virus-to-cell transmission,which includes general target-cell dynamics,nonlinear incidence functions,state dependent removal functions and infinitely distributed intracellular delays.We show that the model demonstrates a global threshold dynamics,fully described by the basic reproduction number???0,which is identified explicitly.If ???0?1,the infection-free equilibrium is globally asymptotically stable.If ???0?1,the model system is uniformly persistent,and the chronic infection equilibrium is globally asymptotically stable.Numerical simulations have been performed to verify and confirm the above analytical results.
Keywords/Search Tags:HIV-1 infection model, time delay, cell-to-cell, global stability, Lyapunov functional
PDF Full Text Request
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