Optimal control applied to a visceral leishmaniasis model

In this article, we developed a deterministic model for the transmission dynamics of visceral leishmaniasis in humans, canine reservoirs and sandflies, which is the only vector that transmits the disease parasite. The theoretical and epidemiological findings of this study indicates that the dise...

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Main Authors: Buddhi Pantha, Folashade B. Agusto, Ibrahim M. Elmojtaba
Format: Article
Language:English
Published: Texas State University 2020-07-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2020/80/abstr.html
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author Buddhi Pantha
Folashade B. Agusto
Ibrahim M. Elmojtaba
author_facet Buddhi Pantha
Folashade B. Agusto
Ibrahim M. Elmojtaba
author_sort Buddhi Pantha
collection DOAJ
description In this article, we developed a deterministic model for the transmission dynamics of visceral leishmaniasis in humans, canine reservoirs and sandflies, which is the only vector that transmits the disease parasite. The theoretical and epidemiological findings of this study indicates that the disease-free equilibrium of the model is locally and globally asymptotically stable when the associated reproduction number is less than unity. We perform sensitivity analysis on the model parameter to determine the parameter with the most impact on the reproduction number. Following the results obtained from the sensitivity analysis, we apply optimal control theory using three time dependent control variables representing personal protection, insecticide spraying and culling of infected canine reservoirs. Simulation results are presented for various outbreak scenarios which indicates that leishmaniasis can be eliminated from a region by the application of three time dependent controls representing respectively, personal protection, insecticide spraying and culling infected canine reservoir.
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spelling doaj.art-8e1739058a5d4bd99cee7bbbd0dc29cd2022-12-21T18:13:03ZengTexas State UniversityElectronic Journal of Differential Equations1072-66912020-07-01202080,124Optimal control applied to a visceral leishmaniasis modelBuddhi Pantha0Folashade B. Agusto1Ibrahim M. Elmojtaba2 Abraham Baldwin Agricultural College, Tifton, GA, USA Univ. of Kansas, Lawrence KS, USA Sultan Qaboos Univ., Muscat, Oman In this article, we developed a deterministic model for the transmission dynamics of visceral leishmaniasis in humans, canine reservoirs and sandflies, which is the only vector that transmits the disease parasite. The theoretical and epidemiological findings of this study indicates that the disease-free equilibrium of the model is locally and globally asymptotically stable when the associated reproduction number is less than unity. We perform sensitivity analysis on the model parameter to determine the parameter with the most impact on the reproduction number. Following the results obtained from the sensitivity analysis, we apply optimal control theory using three time dependent control variables representing personal protection, insecticide spraying and culling of infected canine reservoirs. Simulation results are presented for various outbreak scenarios which indicates that leishmaniasis can be eliminated from a region by the application of three time dependent controls representing respectively, personal protection, insecticide spraying and culling infected canine reservoir.http://ejde.math.txstate.edu/Volumes/2020/80/abstr.htmlvisceral leishmanisispkdlvaccinationcanine reservoiroptimal control
spellingShingle Buddhi Pantha
Folashade B. Agusto
Ibrahim M. Elmojtaba
Optimal control applied to a visceral leishmaniasis model
Electronic Journal of Differential Equations
visceral leishmanisis
pkdl
vaccination
canine reservoir
optimal control
title Optimal control applied to a visceral leishmaniasis model
title_full Optimal control applied to a visceral leishmaniasis model
title_fullStr Optimal control applied to a visceral leishmaniasis model
title_full_unstemmed Optimal control applied to a visceral leishmaniasis model
title_short Optimal control applied to a visceral leishmaniasis model
title_sort optimal control applied to a visceral leishmaniasis model
topic visceral leishmanisis
pkdl
vaccination
canine reservoir
optimal control
url http://ejde.math.txstate.edu/Volumes/2020/80/abstr.html
work_keys_str_mv AT buddhipantha optimalcontrolappliedtoavisceralleishmaniasismodel
AT folashadebagusto optimalcontrolappliedtoavisceralleishmaniasismodel
AT ibrahimmelmojtaba optimalcontrolappliedtoavisceralleishmaniasismodel