A TB Model with Infectivity in Latent Period and Imperfect Treatment

An epidemiological model of TB with infectivity in latent period and imperfect treatment is introduced. As presented, sustained oscillations are not possible and the endemic proportions either approach the disease-free equilibrium or an endemic equilibrium. The expanded model that stratified the inf...

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Main Authors: Juan Wang, Sha-Sha Gao, Xue-Zhi Li
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2012/184918
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author Juan Wang
Sha-Sha Gao
Xue-Zhi Li
author_facet Juan Wang
Sha-Sha Gao
Xue-Zhi Li
author_sort Juan Wang
collection DOAJ
description An epidemiological model of TB with infectivity in latent period and imperfect treatment is introduced. As presented, sustained oscillations are not possible and the endemic proportions either approach the disease-free equilibrium or an endemic equilibrium. The expanded model that stratified the infectious individuals according to their time-since-infection θ is also carried out. The global asymptotic stability of the infection-free state is established as well as local asymptotic stability of the endemic equilibrium. At the end, numerical simulations are presented to illustrate the results.
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publishDate 2012-01-01
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series Discrete Dynamics in Nature and Society
spelling doaj-art-bacb2a2d0dd44f30829c3360ad2204362025-02-03T00:59:57ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2012-01-01201210.1155/2012/184918184918A TB Model with Infectivity in Latent Period and Imperfect TreatmentJuan Wang0Sha-Sha Gao1Xue-Zhi Li2Department of Mathematics, Xinyang Normal University, Xinyang 464000, ChinaDepartment of Mathematics, Xinyang Normal University, Xinyang 464000, ChinaDepartment of Mathematics, Xinyang Normal University, Xinyang 464000, ChinaAn epidemiological model of TB with infectivity in latent period and imperfect treatment is introduced. As presented, sustained oscillations are not possible and the endemic proportions either approach the disease-free equilibrium or an endemic equilibrium. The expanded model that stratified the infectious individuals according to their time-since-infection θ is also carried out. The global asymptotic stability of the infection-free state is established as well as local asymptotic stability of the endemic equilibrium. At the end, numerical simulations are presented to illustrate the results.http://dx.doi.org/10.1155/2012/184918
spellingShingle Juan Wang
Sha-Sha Gao
Xue-Zhi Li
A TB Model with Infectivity in Latent Period and Imperfect Treatment
Discrete Dynamics in Nature and Society
title A TB Model with Infectivity in Latent Period and Imperfect Treatment
title_full A TB Model with Infectivity in Latent Period and Imperfect Treatment
title_fullStr A TB Model with Infectivity in Latent Period and Imperfect Treatment
title_full_unstemmed A TB Model with Infectivity in Latent Period and Imperfect Treatment
title_short A TB Model with Infectivity in Latent Period and Imperfect Treatment
title_sort tb model with infectivity in latent period and imperfect treatment
url http://dx.doi.org/10.1155/2012/184918
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