Mathematical analysis of an epidemic model with direct and indirect transmission modes and two delays

In this article, we consider an epidemiological model in which we take into account the effects of direct and indirect transmissions. The first mode occurs through direct contact between infectious and susceptible individuals, and the second one will take place through the shedding of virus particle...

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Main Authors: Najm Fatiha, Yafia Radouane, Alaoui My Ahmed Aziz, Tridane Abdessamad, Boukrim Lahcen
Format: Article
Language:English
Published: De Gruyter 2023-11-01
Series:Nonautonomous Dynamical Systems
Subjects:
Online Access:https://doi.org/10.1515/msds-2023-0103
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author Najm Fatiha
Yafia Radouane
Alaoui My Ahmed Aziz
Tridane Abdessamad
Boukrim Lahcen
author_facet Najm Fatiha
Yafia Radouane
Alaoui My Ahmed Aziz
Tridane Abdessamad
Boukrim Lahcen
author_sort Najm Fatiha
collection DOAJ
description In this article, we consider an epidemiological model in which we take into account the effects of direct and indirect transmissions. The first mode occurs through direct contact between infectious and susceptible individuals, and the second one will take place through the shedding of virus particles by infectious individuals and their acquisition by susceptible ones. We also study the effect of latency period and time needed for a susceptible person to become infected by indirect transmission mode. By considering the direct and indirect basic reproduction numbers, we define the basic reproduction number R0{R}_{0} of the model, which helps us to analyze the stability of equilibria and bifurcation and determine the most sensitive parameters. In conclusion, some numerical simulations are given to confirm the analytical analysis.
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spelling doaj.art-e58e713be52d4e8382de5e3de93149032023-11-14T08:29:58ZengDe GruyterNonautonomous Dynamical Systems2353-06262023-11-0110121110.1515/msds-2023-0103Mathematical analysis of an epidemic model with direct and indirect transmission modes and two delaysNajm Fatiha0Yafia Radouane1Alaoui My Ahmed Aziz2Tridane Abdessamad3Boukrim Lahcen4Department of Mathematics, Faculty of Sciences, Ibn Tofail University, Campus Universitaire, BP 133, Kenitra, MoroccoDepartment of Mathematics, Faculty of Sciences, Ibn Tofail University, Campus Universitaire, BP 133, Kenitra, MoroccoNormandie Univ, 76063, Le Havre, France; Mathematical Sciences (COS), United Arab Emirates University, P.O. Box No. 15551, Al Ain, UAEDepartment of Mathematics, Faculty of Sciences, Ibn Tofail University, Campus Universitaire, BP 133, Kenitra, MoroccoIn this article, we consider an epidemiological model in which we take into account the effects of direct and indirect transmissions. The first mode occurs through direct contact between infectious and susceptible individuals, and the second one will take place through the shedding of virus particles by infectious individuals and their acquisition by susceptible ones. We also study the effect of latency period and time needed for a susceptible person to become infected by indirect transmission mode. By considering the direct and indirect basic reproduction numbers, we define the basic reproduction number R0{R}_{0} of the model, which helps us to analyze the stability of equilibria and bifurcation and determine the most sensitive parameters. In conclusion, some numerical simulations are given to confirm the analytical analysis.https://doi.org/10.1515/msds-2023-0103epidemic modellatency perioddelay differential equationbifurcationsensitivity34d0539b0592b0534c2392-10
spellingShingle Najm Fatiha
Yafia Radouane
Alaoui My Ahmed Aziz
Tridane Abdessamad
Boukrim Lahcen
Mathematical analysis of an epidemic model with direct and indirect transmission modes and two delays
Nonautonomous Dynamical Systems
epidemic model
latency period
delay differential equation
bifurcation
sensitivity
34d05
39b05
92b05
34c23
92-10
title Mathematical analysis of an epidemic model with direct and indirect transmission modes and two delays
title_full Mathematical analysis of an epidemic model with direct and indirect transmission modes and two delays
title_fullStr Mathematical analysis of an epidemic model with direct and indirect transmission modes and two delays
title_full_unstemmed Mathematical analysis of an epidemic model with direct and indirect transmission modes and two delays
title_short Mathematical analysis of an epidemic model with direct and indirect transmission modes and two delays
title_sort mathematical analysis of an epidemic model with direct and indirect transmission modes and two delays
topic epidemic model
latency period
delay differential equation
bifurcation
sensitivity
34d05
39b05
92b05
34c23
92-10
url https://doi.org/10.1515/msds-2023-0103
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