arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.07156physics.soc-phq-bio.PEstat.AP
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表征CoViD-19的扩散

Characterizing the spread of CoViD-19

Dean Karlen

摘要:

自疫情开始以来,来自世界各地的CoViD-19病例,住院和死亡的每日报告已公开。本文介绍了方法来表征疾病的传播的广泛特点,相对较长的时间内恒定的传播率,使用一个新的人口建模框架的基础上离散时间差分方程。选择比较参数是因为它们对模型假设的依赖性较弱。他们的点和区间估计的方法,占额外的方差来源的情况下的数据,提出。这些方法为使用公开数据定量评估社交距离政策变化的影响提供了基础。作为例子,安大略省和德国各州的数据进行了分析,使用这个框架。德国病例数据显示,在2020年5月6日放宽封锁规则后,传播率略有增加。通过结合来自德国的病例和死亡数据,估计从感染到死亡的时间的平均值和标准差。

英文摘要:

Since the beginning of the epidemic, daily reports of CoViD-19 cases, hospitalizations, and deaths from around the world have been publicly available. This paper describes methods to characterize broad features of the spread of the disease, with relatively long periods of constant transmission rates, using a new population modeling framework based on discrete-time difference equations. Comparative parameters are chosen for their weak dependence on model assumptions. Approaches for their point and interval estimation, accounting for additional sources of variance in the case data, are presented. These methods provide a basis to quantitatively assess the impact of changes to social distancing policies using publicly available data. As examples, data from Ontario and German states are analyzed using this framework. German case data show a small increase in transmission rates following the relaxation of lock-down rules on May 6, 2020. By combining case and death data from Germany, the mean and standard deviation of the time from infection to death are estimated.

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。

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