基金
The authors are grateflfl to tile anonymous referees for carefully reading the manuscript and for important snggestions and comments, which led to the improvement of their manuscript. This research is supported by NSFC grant 11601043, China Postdoctoral Science Foundation （Grant No. 2016M590243）, Jiangsu Province ＂333 High-Level Personnel Training Project＂ （Grant No. BRA2017468） and Qing Lan Project of Jiangsu Province of 2016 and 2017.
关键词
长时间行为
随机
SIS
模型
数字模拟
模特儿
地方性
疾病
A multigroup Susceptible-Infected-Susceptible （SIS） model
disease free equilibrium
endemic equilibrium
exponential stability
prevail
stationary distribution.
