Sensitivity and uncertainty analyses for a SARS model with time-varying inputs and outputs

This paper presents a statistical study of a deterministic model for the transmissiondynamics and control of severe acute respiratory syndrome (SARS). The effect of themodel parameters on the dynamics of the disease is analyzed using sensitivity anduncertainty analyses. The response (or output) of i...

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Main Authors: Robert G. McLeod, John F. Brewster, Abba B. Gumel, Dean A. Slonowsky
Format: Article
Language:English
Published: AIMS Press 2006-04-01
Series:Mathematical Biosciences and Engineering
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Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2006.3.527
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author Robert G. McLeod
John F. Brewster
Abba B. Gumel
Dean A. Slonowsky
author_facet Robert G. McLeod
John F. Brewster
Abba B. Gumel
Dean A. Slonowsky
author_sort Robert G. McLeod
collection DOAJ
description This paper presents a statistical study of a deterministic model for the transmissiondynamics and control of severe acute respiratory syndrome (SARS). The effect of themodel parameters on the dynamics of the disease is analyzed using sensitivity anduncertainty analyses. The response (or output) of interest is the control reproductionnumber, which is an epidemiological threshold governing the persistence or eliminationof SARS in a given population. The compartmental model includes parameters associatedwith control measures such as quarantine and isolation of asymptomatic and symptomaticindividuals. One feature of our analysis is the incorporation of time-dependentfunctions into the model to reflect the progressive refinement of these SARS controlmeasures over time. Consequently, the model contains continuous time-varying inputs andoutputs. In this setting, sensitivity and uncertainty analytical techniques are used inorder to analyze the impact of the uncertainty in the parameter estimates on the resultsobtained and to determine which parameters have the largest impact on driving thedisease dynamics.
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institution Kabale University
issn 1551-0018
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publishDate 2006-04-01
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spelling doaj-art-7e0f704f1d2c40969a87b68bcdb6176b2025-01-24T01:51:49ZengAIMS PressMathematical Biosciences and Engineering1551-00182006-04-013352754410.3934/mbe.2006.3.527Sensitivity and uncertainty analyses for a SARS model with time-varying inputs and outputsRobert G. McLeod0John F. Brewster1Abba B. Gumel2Dean A. Slonowsky3Department of Mathematics and Statistics, University of Winnipeg, Winnipeg, MB, Canada R3B 2E9Department of Mathematics and Statistics, University of Winnipeg, Winnipeg, MB, Canada R3B 2E9Department of Mathematics and Statistics, University of Winnipeg, Winnipeg, MB, Canada R3B 2E9Department of Mathematics and Statistics, University of Winnipeg, Winnipeg, MB, Canada R3B 2E9This paper presents a statistical study of a deterministic model for the transmissiondynamics and control of severe acute respiratory syndrome (SARS). The effect of themodel parameters on the dynamics of the disease is analyzed using sensitivity anduncertainty analyses. The response (or output) of interest is the control reproductionnumber, which is an epidemiological threshold governing the persistence or eliminationof SARS in a given population. The compartmental model includes parameters associatedwith control measures such as quarantine and isolation of asymptomatic and symptomaticindividuals. One feature of our analysis is the incorporation of time-dependentfunctions into the model to reflect the progressive refinement of these SARS controlmeasures over time. Consequently, the model contains continuous time-varying inputs andoutputs. In this setting, sensitivity and uncertainty analytical techniques are used inorder to analyze the impact of the uncertainty in the parameter estimates on the resultsobtained and to determine which parameters have the largest impact on driving thedisease dynamics.https://www.aimspress.com/article/doi/10.3934/mbe.2006.3.527epidemiological modelfunctional out-putcontrol reproduction numberlatin hypercube samplingpartial rank correlation coefficients.
spellingShingle Robert G. McLeod
John F. Brewster
Abba B. Gumel
Dean A. Slonowsky
Sensitivity and uncertainty analyses for a SARS model with time-varying inputs and outputs
Mathematical Biosciences and Engineering
epidemiological model
functional out-put
control reproduction number
latin hypercube sampling
partial rank correlation coefficients.
title Sensitivity and uncertainty analyses for a SARS model with time-varying inputs and outputs
title_full Sensitivity and uncertainty analyses for a SARS model with time-varying inputs and outputs
title_fullStr Sensitivity and uncertainty analyses for a SARS model with time-varying inputs and outputs
title_full_unstemmed Sensitivity and uncertainty analyses for a SARS model with time-varying inputs and outputs
title_short Sensitivity and uncertainty analyses for a SARS model with time-varying inputs and outputs
title_sort sensitivity and uncertainty analyses for a sars model with time varying inputs and outputs
topic epidemiological model
functional out-put
control reproduction number
latin hypercube sampling
partial rank correlation coefficients.
url https://www.aimspress.com/article/doi/10.3934/mbe.2006.3.527
work_keys_str_mv AT robertgmcleod sensitivityanduncertaintyanalysesforasarsmodelwithtimevaryinginputsandoutputs
AT johnfbrewster sensitivityanduncertaintyanalysesforasarsmodelwithtimevaryinginputsandoutputs
AT abbabgumel sensitivityanduncertaintyanalysesforasarsmodelwithtimevaryinginputsandoutputs
AT deanaslonowsky sensitivityanduncertaintyanalysesforasarsmodelwithtimevaryinginputsandoutputs