An SIR Epidemic Model with Time Delay and General Nonlinear Incidence Rate

An SIR epidemic model with nonlinear incidence rate and time delay is investigated. The disease transmission function and the rate that infected individuals recovered from the infected compartment are assumed to be governed by general functions F(S,I) and G(I), respectively. By constructing Lyapunov...

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Main Authors: Mingming Li, Xianning Liu
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2014/131257
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author Mingming Li
Xianning Liu
author_facet Mingming Li
Xianning Liu
author_sort Mingming Li
collection DOAJ
description An SIR epidemic model with nonlinear incidence rate and time delay is investigated. The disease transmission function and the rate that infected individuals recovered from the infected compartment are assumed to be governed by general functions F(S,I) and G(I), respectively. By constructing Lyapunov functionals and using the Lyapunov-LaSalle invariance principle, the global asymptotic stability of the disease-free equilibrium and the endemic equilibrium is obtained. It is shown that the global properties of the system depend on both the properties of these general functions and the basic reproductive number R0.
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issn 1085-3375
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publishDate 2014-01-01
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series Abstract and Applied Analysis
spelling doaj-art-5fb88472cda04dc984c15f7368ff4e1d2025-02-03T01:26:19ZengWileyAbstract and Applied Analysis1085-33751687-04092014-01-01201410.1155/2014/131257131257An SIR Epidemic Model with Time Delay and General Nonlinear Incidence RateMingming Li0Xianning Liu1Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Mathematics and Statistics, Southwest University, Chongqing 400715, ChinaKey Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Mathematics and Statistics, Southwest University, Chongqing 400715, ChinaAn SIR epidemic model with nonlinear incidence rate and time delay is investigated. The disease transmission function and the rate that infected individuals recovered from the infected compartment are assumed to be governed by general functions F(S,I) and G(I), respectively. By constructing Lyapunov functionals and using the Lyapunov-LaSalle invariance principle, the global asymptotic stability of the disease-free equilibrium and the endemic equilibrium is obtained. It is shown that the global properties of the system depend on both the properties of these general functions and the basic reproductive number R0.http://dx.doi.org/10.1155/2014/131257
spellingShingle Mingming Li
Xianning Liu
An SIR Epidemic Model with Time Delay and General Nonlinear Incidence Rate
Abstract and Applied Analysis
title An SIR Epidemic Model with Time Delay and General Nonlinear Incidence Rate
title_full An SIR Epidemic Model with Time Delay and General Nonlinear Incidence Rate
title_fullStr An SIR Epidemic Model with Time Delay and General Nonlinear Incidence Rate
title_full_unstemmed An SIR Epidemic Model with Time Delay and General Nonlinear Incidence Rate
title_short An SIR Epidemic Model with Time Delay and General Nonlinear Incidence Rate
title_sort sir epidemic model with time delay and general nonlinear incidence rate
url http://dx.doi.org/10.1155/2014/131257
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AT xianningliu ansirepidemicmodelwithtimedelayandgeneralnonlinearincidencerate
AT mingmingli sirepidemicmodelwithtimedelayandgeneralnonlinearincidencerate
AT xianningliu sirepidemicmodelwithtimedelayandgeneralnonlinearincidencerate