Modeling and interpreting the COVID-19 intervention strategy of China: A human mobility view.

Modeling and interpreting the COVID-19 intervention strategy of China: A human mobility view.
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DOI:
10.1371/journal.pone.0242761
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发表时间:
2020
期刊:
影响因子:
3.7
通讯作者:
Chen Y
Chen Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Chen H;He J;Song W;Wang L;Wang J;Chen Y

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2019冠状病毒病(COVID-19)自2019年12月以来已被证明是全球流行的疫情。作为一个专注于缓解疫情影响的国家,中国实施了一系列公共卫生干预措施,以防止疾病进一步传播,包括武汉和其他城市的疫情封锁。本文利用航班数据建立了中国的流动网络,并提出了一个不含流行病学参数的模型来表示通过网络传播的风险,即流行病强度。通过简单调整干预参数,可以模拟不同出行限制水平下的交通量,分析遏制策略如何减轻病毒通过交通传播。该方法被成功地应用于中国的一个省的网络和流行强度顺利地解释流图。通过这种节点到节点的传播风险解读,可以正确分析整体和详细的流行病危害,这可以在突发公共卫生事件期间提供有价值的干预建议。
The Coronavirus Disease 2019 (COVID-19) has proved a globally prevalent outbreak since December 2019. As a focused country to alleviate the epidemic impact, China implemented a range of public health interventions to prevent the disease from further transmission, including the pandemic lockdown in Wuhan and other cities. This paper establishes China’s mobility network by a flight dataset and proposes a model without epidemiological parameters to indicate the spread risks through the network, which is termed as epidemic strength. By simply adjusting an intervention parameter, traffic volumes under different travel-restriction levels can be simulated to analyze how the containment strategy can mitigate the virus dissemination through traffic. This approach is successfully applied to a network of Chinese provinces and the epidemic strength is smoothly interpreted by flow maps. Through this node-to-node interpretation of transmission risks, both overall and detailed epidemic hazards are properly analyzed, which can provide valuable intervention advice during public health emergencies.
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