Examination of a simple model of condom usage and individual withdrawal for the HIV epidemic

Since the discovery of HIV/AIDS there have been numerous mathematical modelsproposed to explain the epidemic of the disease and to evaluate possiblecontrol measures. In particular, several recent studies have looked at thepotential impact of condom usage on the epidemic[1, 2, 3, 4]. We develop a si...

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Main Authors: Jeff Musgrave, James Watmough
Format: Article
Language:English
Published: AIMS Press 2009-02-01
Series:Mathematical Biosciences and Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2009.6.363
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author Jeff Musgrave
James Watmough
author_facet Jeff Musgrave
James Watmough
author_sort Jeff Musgrave
collection DOAJ
description Since the discovery of HIV/AIDS there have been numerous mathematical modelsproposed to explain the epidemic of the disease and to evaluate possiblecontrol measures. In particular, several recent studies have looked at thepotential impact of condom usage on the epidemic[1, 2, 3, 4]. We develop a simplemodel for HIV/AIDS, and investigate the effectiveness of condoms as apossible control strategy. We show that condoms can greatly reduce the numberof outbreaks and the size of the epidemic. However, the necessary condom usagelevels are much higher than the current estimates. We conclude that condomsalone will not be sufficient to halt the epidemic in most populationsunless current estimates of the transmission probabilities are high.Our model has only five independentparameters, which allows for a complete analysis. We show that the assumptionsof mass action and standard incidence provide similar results, which impliesthat the results of the simpler mass action model can be used as a good firstapproximation to the peak of the epidemic.
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spelling doaj-art-252619929a2448128e5895ec3df977342025-01-24T01:59:06ZengAIMS PressMathematical Biosciences and Engineering1551-00182009-02-016236337610.3934/mbe.2009.6.363Examination of a simple model of condom usage and individual withdrawal for the HIV epidemicJeff Musgrave0James Watmough1Department of Mathematics and Statistics, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3Department of Mathematics and Statistics, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3Since the discovery of HIV/AIDS there have been numerous mathematical modelsproposed to explain the epidemic of the disease and to evaluate possiblecontrol measures. In particular, several recent studies have looked at thepotential impact of condom usage on the epidemic[1, 2, 3, 4]. We develop a simplemodel for HIV/AIDS, and investigate the effectiveness of condoms as apossible control strategy. We show that condoms can greatly reduce the numberof outbreaks and the size of the epidemic. However, the necessary condom usagelevels are much higher than the current estimates. We conclude that condomsalone will not be sufficient to halt the epidemic in most populationsunless current estimates of the transmission probabilities are high.Our model has only five independentparameters, which allows for a complete analysis. We show that the assumptionsof mass action and standard incidence provide similar results, which impliesthat the results of the simpler mass action model can be used as a good firstapproximation to the peak of the epidemic.https://www.aimspress.com/article/doi/10.3934/mbe.2009.6.363disease transmission modelcontrol reproduction number.epidemiology
spellingShingle Jeff Musgrave
James Watmough
Examination of a simple model of condom usage and individual withdrawal for the HIV epidemic
Mathematical Biosciences and Engineering
disease transmission model
control reproduction number.
epidemiology
title Examination of a simple model of condom usage and individual withdrawal for the HIV epidemic
title_full Examination of a simple model of condom usage and individual withdrawal for the HIV epidemic
title_fullStr Examination of a simple model of condom usage and individual withdrawal for the HIV epidemic
title_full_unstemmed Examination of a simple model of condom usage and individual withdrawal for the HIV epidemic
title_short Examination of a simple model of condom usage and individual withdrawal for the HIV epidemic
title_sort examination of a simple model of condom usage and individual withdrawal for the hiv epidemic
topic disease transmission model
control reproduction number.
epidemiology
url https://www.aimspress.com/article/doi/10.3934/mbe.2009.6.363
work_keys_str_mv AT jeffmusgrave examinationofasimplemodelofcondomusageandindividualwithdrawalforthehivepidemic
AT jameswatmough examinationofasimplemodelofcondomusageandindividualwithdrawalforthehivepidemic