Epidemic spreading on a scale-free network with awareness |
| |
Authors: | Lu Yan-Ling Jiang Guo-Ping Song Yu-Rong |
| |
Affiliation: | a College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210004, China;b College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210004, China |
| |
Abstract: | 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. |
| |
Keywords: | scale-free network awareness vaccination epidemic threshold |
本文献已被 CNKI 维普 等数据库收录! |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
|