...
首页> 外文期刊>Journal of Mathematical Biology >Persistence time of SIS infections in heterogeneous populations and networks
【24h】

Persistence time of SIS infections in heterogeneous populations and networks

机译:异构群体和网络中SIS感染的持久性时间

获取原文
获取原文并翻译 | 示例
           

摘要

For a susceptible-infectious-susceptible infection model in a heterogeneous population, we present simple formulae giving the leading-order asymptotic (large population) behaviour of the mean persistence time, from an endemic state to extinction of infection. Our model may be interpreted as describing an infection spreading through either (1)a population with heterogeneity in individuals' susceptibility and/or infectiousness; or (2)a heterogeneous directed network. Using our asymptotic formulae, we show that such heterogeneity can only reduce (to leading order) the mean persistence time compared to a corresponding homogeneous population, and that the greater the degree of heterogeneity, the more quickly infection will die out.
机译:对于在异质群体中敏感传染性易感性的感染模型,我们提出了简单的公式,从流行状态到消失感染的平均持久性时期的偏心渐近(大群)行为。 我们的模型可以被解释为描述通过(1)个群体在个人易感性和/或传染病中的异质性的感染; 或(2)异构定向网络。 使用我们的渐近公式,我们表明这种异质性只能减少(到领先的顺序)与相应的均匀群体相比的平均持久性,并且异质程度越大,感染率越快将消失。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号