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《MedRixv，2月5日，Risk assessment of novel coronavirus 2019-nCoV outbreaks outside China》

  • 来源专题：COVID-19科研动态监测
  • 编译者： zhangmin
  • 发布时间：2020-02-06

  • Risk assessment of novel coronavirus 2019-nCoV outbreaks outside China

    Peter Boldog, Tamas Tekeli, Zsolt Vizi, Attila Denes, Ferenc Bartha, Gergely Rost

    doi: https://doi.org/10.1101/2020.02.04.20020503

    Abstract

    We developed a computational tool to assess the risk of novel coronavirus outbreaks outside China. We estimate the dependence of the risk of a major outbreak in a country from imported cases on key parameters such as: (i) the evolution of the cumulative number of cases in mainland China outside the closed areas; (ii) the connectivity of the destination country with China, including baseline travel frequencies, the effect of travel restrictions, and the efficacy of entry screening at destination; (iii) the efficacy of control measures in the destination country (expressed by the local reproduction number Rloc). We found that in countries with low connectivity to China but with relatively high Rloc, the most beneficial control measure to reduce the risk of outbreaks is a further reduction in their importation number either by entry screening or travel restrictions. Countries with high connectivity but low Rloc benefit the most from policies that further reduce Rloc. Countries in the middle should consider a combination of such policies. Risk assessments were illustrated for selected groups of countries from America, Asia and Europe, and we investigated how their risks depend on those parameters, and how the risk is increasing in time as the number of cases in China is growing.

    *注，本文为预印本论文手稿，是未经同行评审的初步报告，其观点仅供科研同行交流，并不是结论性内容，请使用者谨慎使用.

  • 原文来源：https://www.medrxiv.org/content/10.1101/2020.02.04.20020503v1
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