Epidemic spreading on a scale-free network with awareness

This paper presents a modified susceptible-infected-recovered（SIR） model with the effects of awareness and vaccination to study the epidemic spreading on scale-free networks based on the mean-field theory.In this model,when susceptible individuals receive awareness from their infected neighbor nodes...

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Bibliographic Details
Published in:Chinese physics B 2012-10, Vol.21 (10), p.44-48, Article 100207
Main Author: 鲁延玲 蒋国平 宋玉蓉
Format: Article
Language:English
Subjects:
Computer simulation
Epidemics
Mathematical models
Networks
Outbreaks
Risk
Spreading
Thresholds
个体意识
平均场理论
接种疫苗
数值模拟
无标度网络
疫苗接种
病毒传播
预防接种
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Summary:This paper presents a modified susceptible-infected-recovered（SIR） model with the effects of awareness and vaccination to study the epidemic spreading on scale-free networks based on the mean-field theory.In this model,when susceptible individuals receive awareness from their infected neighbor nodes,they will take vaccination measures.The theoretical analysis and the numerical simulations show that the existence of awareness and vaccination can significantly improve the epidemic threshold and reduce the risk of virus outbreaks.In addition,regardless of the existence of vaccination,the awareness can increase the spreading threshold and slow the spreading speed effectively.For a given awareness and a certain spreading rate,the total number of infections reduces with the increasing vaccination rate.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/10/100207