arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1503.08676physics.soc-phnlin.AOq-bio.PE
收藏

网络上多阶段感染的动力学

Dynamics of multi-stage infections on networks

N. Sherborne, K. B. Blyuss, I. Z. Kiss

摘要:

本文研究了传染期为非指数分布的传染病的动力学问题。这是通过考虑网络上的多阶段感染模型来实现的。使用两两近似与标准的封闭,一些重要的疾病动力学特性的推导分析,包括最终规模的流行病和流行病爆发的阈值,它示出这些数量如何依赖于疾病的特征,以及疾病阶段的数量。随机模拟网络上的动态进行比较成对模型的结果,几个现实的例子,传染病,以说明所发挥的作用,在疾病动态的阶段数。这些结果表明,疾病阶段数越多,流行病爆发的速度越快,流行病的高峰期越高,最终流行病的规模也越大。在我们考虑的情况下,成对和模拟方法之间的协议是优秀的。

英文摘要:

This paper investigates the dynamics of infectious diseases with a non-exponentially distributed infectious period. This is achieved by considering a multi-stage infection model on networks. Using pairwise approximation with a standard closure, a number of important characteristics of disease dynamics are derived analytically, including the final size of an epidemic and a threshold for epidemic outbreaks, and it is shown how these quantities depend on disease characteristics, as well as the number of disease stages. Stochastic simulations of dynamics on networks are performed and compared to the results of pairwise models for several realistic examples of infectious diseases to illustrate the role played by the number of stages in the disease dynamics. These results show that a higher number of disease stages results in faster epidemic outbreaks with a higher peak prevalence and a larger final size of the epidemic. The agreement between the pairwise and simulation methods is excellent in the cases we consider.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑