Mathematical modeling of the COVID-19 epidemic with fear impact

Many studies have shown that faced with an epidemic, the effect of fear on human behavior can reduce the number of new cases. In this work, we consider an SIS-B compartmental model with fear and treatment effects considering that the disease is transmitted from an infected person to a susceptible pe...

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Main Authors: Ashraf Adnan Thirthar, Hamadjam Abboubakar, Aziz Khan, Thabet Abdeljawad
Format: Article
Language:English
Published: AIMS Press 2023-01-01
Series:AIMS Mathematics
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/math.2023326?viewType=HTML
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author Ashraf Adnan Thirthar
Hamadjam Abboubakar
Aziz Khan
Thabet Abdeljawad
author_facet Ashraf Adnan Thirthar
Hamadjam Abboubakar
Aziz Khan
Thabet Abdeljawad
author_sort Ashraf Adnan Thirthar
collection DOAJ
description Many studies have shown that faced with an epidemic, the effect of fear on human behavior can reduce the number of new cases. In this work, we consider an SIS-B compartmental model with fear and treatment effects considering that the disease is transmitted from an infected person to a susceptible person. After model formulation and proving some basic results as positiveness and boundedness, we compute the basic reproduction number $ \mathcal R_0 $ and compute the equilibrium points of the model. We prove the local stability of the disease-free equilibrium when $ \mathcal R_0 < 1 $. We study then the condition of occurrence of the backward bifurcation phenomenon when $ \mathcal R_0\leq1 $. After that, we prove that, if the saturation parameter which measures the effect of the delay in treatment for the infected individuals is equal to zero, then the backward bifurcation disappears and the disease-free equilibrium is globally asymptotically stable. We then prove, using the geometric approach, that the unique endemic equilibrium is globally asymptotically stable whenever the $ \mathcal R_0 > 1 $. We finally perform several numerical simulations to validate our analytical results.
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spelling doaj.art-91614162b3d74c5db97359308f95b72f2023-01-29T02:09:11ZengAIMS PressAIMS Mathematics2473-69882023-01-01836447646510.3934/math.2023326Mathematical modeling of the COVID-19 epidemic with fear impactAshraf Adnan Thirthar0Hamadjam Abboubakar1Aziz Khan2Thabet Abdeljawad31. Department of Studies and Planning, University of Fallujah, Anbar, Iraq2. Department of Computer Engineering, University Institute of Technology of Ngaoundéré, The University of Ngaoundéré, P.O. Box 455, Ngaoundéré, Cameroon3. Department of Mathematics and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia3. Department of Mathematics and Sciences, Prince Sultan University, Riyadh 11586, Saudi ArabiaMany studies have shown that faced with an epidemic, the effect of fear on human behavior can reduce the number of new cases. In this work, we consider an SIS-B compartmental model with fear and treatment effects considering that the disease is transmitted from an infected person to a susceptible person. After model formulation and proving some basic results as positiveness and boundedness, we compute the basic reproduction number $ \mathcal R_0 $ and compute the equilibrium points of the model. We prove the local stability of the disease-free equilibrium when $ \mathcal R_0 < 1 $. We study then the condition of occurrence of the backward bifurcation phenomenon when $ \mathcal R_0\leq1 $. After that, we prove that, if the saturation parameter which measures the effect of the delay in treatment for the infected individuals is equal to zero, then the backward bifurcation disappears and the disease-free equilibrium is globally asymptotically stable. We then prove, using the geometric approach, that the unique endemic equilibrium is globally asymptotically stable whenever the $ \mathcal R_0 > 1 $. We finally perform several numerical simulations to validate our analytical results.https://www.aimspress.com/article/doi/10.3934/math.2023326?viewType=HTMLcovid-19mathematical modelfear effectasymptotic stability
spellingShingle Ashraf Adnan Thirthar
Hamadjam Abboubakar
Aziz Khan
Thabet Abdeljawad
Mathematical modeling of the COVID-19 epidemic with fear impact
AIMS Mathematics
covid-19
mathematical model
fear effect
asymptotic stability
title Mathematical modeling of the COVID-19 epidemic with fear impact
title_full Mathematical modeling of the COVID-19 epidemic with fear impact
title_fullStr Mathematical modeling of the COVID-19 epidemic with fear impact
title_full_unstemmed Mathematical modeling of the COVID-19 epidemic with fear impact
title_short Mathematical modeling of the COVID-19 epidemic with fear impact
title_sort mathematical modeling of the covid 19 epidemic with fear impact
topic covid-19
mathematical model
fear effect
asymptotic stability
url https://www.aimspress.com/article/doi/10.3934/math.2023326?viewType=HTML
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AT azizkhan mathematicalmodelingofthecovid19epidemicwithfearimpact
AT thabetabdeljawad mathematicalmodelingofthecovid19epidemicwithfearimpact