Effects of Community Connectivity on the Spreading Process of Epidemics

Community structure exists widely in real social networks. To investigate the effect of community structure on the spreading of infectious diseases, this paper proposes a community network model that considers both the connection rate and the number of connected edges. Based on the presented communi...

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Main Authors: Zhongshe Gao, Ziyu Gu, Lixin Yang
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/25/6/849
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author Zhongshe Gao
Ziyu Gu
Lixin Yang
author_facet Zhongshe Gao
Ziyu Gu
Lixin Yang
author_sort Zhongshe Gao
collection DOAJ
description Community structure exists widely in real social networks. To investigate the effect of community structure on the spreading of infectious diseases, this paper proposes a community network model that considers both the connection rate and the number of connected edges. Based on the presented community network, a new SIRS transmission model is constructed via the mean-field theory. Furthermore, the basic reproduction number of the model is calculated via the next-generation matrix method. The results reveal that the connection rate and the number of connected edges of the community nodes play crucial roles in the spreading process of infectious diseases. Specifically, it is demonstrated that the basic reproduction number of the model decreases as the community strength increases. However, the density of infected individuals within the community increases as the community strength increases. For community networks with weak strength, infectious diseases are likely not to be eradicated and eventually will become endemic. Therefore, controlling the frequency and range of intercommunity contact will be an effective initiative to curb outbreaks of infectious diseases throughout the network. Our results can provide a theoretical basis for preventing and controlling the spreading of infectious diseases.
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spelling doaj.art-79a9218d92784a6a80f3e74a8750a4282023-11-18T10:17:18ZengMDPI AGEntropy1099-43002023-05-0125684910.3390/e25060849Effects of Community Connectivity on the Spreading Process of EpidemicsZhongshe Gao0Ziyu Gu1Lixin Yang2School of Mathematics and Statistics, Tianshui Normal University, Tianshui 741000, ChinaSchool of Mathematics and Data Science, Shaanxi University of Science & Technology, Xi’an 710021, ChinaSchool of Mathematics and Data Science, Shaanxi University of Science & Technology, Xi’an 710021, ChinaCommunity structure exists widely in real social networks. To investigate the effect of community structure on the spreading of infectious diseases, this paper proposes a community network model that considers both the connection rate and the number of connected edges. Based on the presented community network, a new SIRS transmission model is constructed via the mean-field theory. Furthermore, the basic reproduction number of the model is calculated via the next-generation matrix method. The results reveal that the connection rate and the number of connected edges of the community nodes play crucial roles in the spreading process of infectious diseases. Specifically, it is demonstrated that the basic reproduction number of the model decreases as the community strength increases. However, the density of infected individuals within the community increases as the community strength increases. For community networks with weak strength, infectious diseases are likely not to be eradicated and eventually will become endemic. Therefore, controlling the frequency and range of intercommunity contact will be an effective initiative to curb outbreaks of infectious diseases throughout the network. Our results can provide a theoretical basis for preventing and controlling the spreading of infectious diseases.https://www.mdpi.com/1099-4300/25/6/849community structureepidemic spreadingconnection rate
spellingShingle Zhongshe Gao
Ziyu Gu
Lixin Yang
Effects of Community Connectivity on the Spreading Process of Epidemics
Entropy
community structure
epidemic spreading
connection rate
title Effects of Community Connectivity on the Spreading Process of Epidemics
title_full Effects of Community Connectivity on the Spreading Process of Epidemics
title_fullStr Effects of Community Connectivity on the Spreading Process of Epidemics
title_full_unstemmed Effects of Community Connectivity on the Spreading Process of Epidemics
title_short Effects of Community Connectivity on the Spreading Process of Epidemics
title_sort effects of community connectivity on the spreading process of epidemics
topic community structure
epidemic spreading
connection rate
url https://www.mdpi.com/1099-4300/25/6/849
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