Susceptible-Infected-Recovered-Susceptible Virus Spreading Model Based on Two Dimensional Sparse Lattice  

作　　者：Haiping Zhou Shaohong Cai 

机构地区：[1]Department of Computer Science, Guiyang College, Guiyang, Guizhou 550005, China [2]Guizhou Economy and Finace College, Guiyang, Guizhou 550004, China

出　　处：《Journal of Life Sciences》2011年第6期443-446,共4页生命科学（英文版）

基　　金：Acknowledgments This work was supported by the National Natural Science Foundation of China （Grant No. 10647005） and Science and Technology Foundation of Guizhou Province, China （Grant No. 20090060）.

摘　　要：In order to clarify the virus＇ spreading rules, a SIRS （Susceptible-Infected-Recovered-Susceptible） disease spread model based on sparsely distributed crowd is proposed. In this model, the effects of crowd-density, spread efficiency and the moving of individuals on the spreading of viruses are researched. The theoretical analysis and analog simulation shows that there exist a critical value, only when the product of spread efficiency and crowd density goes beyond the critical value, can viruses spread in crowd continuously and steadily. Besides, the moving of individuals can promote the spreading of viruses. These results are helpful guiding people to defense and control virus＇ spreading process.

关 键 词：Susceptible-Infected-Susceptible mode disease spreading analog simulation. 

分 类 号：TP309[自动化与计算机技术—计算机系统结构] TP391.41[自动化与计算机技术—计算机科学与技术]