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arXiv 2104.14813stat.AP
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COVID-19大规模测试是否有效?考虑流行病动态的重要性

Does Covid-19 Mass Testing Work? The Importance of Accounting for the Epidemic Dynamics

Davide Ferrari, Steven Stillman, Mirco Tonin

摘要:

大规模抗原检测已被提议作为一种可能具有成本效益的工具,以遏制新冠肺炎大流行。我们测试了在意大利南蒂罗尔地区实施的自愿大规模检测活动对随后几个月病毒传播的影响。为此,我们采用了一种创新的实证方法,将半参数增长模型嵌入到一个综合控制框架中,该模型允许Covid-19传播动态在不同地区之间变化,并受到大规模测试活动的影响,该框架创建了一个适当的意大利其他地区的控制组。我们发现,大规模测试活动将新冠肺炎的增长率降低了39%,相当于在干预日期后的10天、20天和40天内,新增病例总数分别减少了18%、30%和56%。我们的研究结果表明,大规模检测活动是缓解大流行的有用工具。

英文摘要:

Mass antigen testing has been proposed as a possible cost-effective tool to contain the Covid-19 pandemic. We test the impact of a voluntary mass testing campaign implemented in the Italian region of South Tyrol on the spread of the virus in the following months. We do so by using an innovative empirical approach which embeds a semi-parametric growth model - where Covid-19 transmission dynamics are allowed to vary across regions and to be impacted by the implementation of the mass testing campaign - into a synthetic control framework which creates an appropriate control group of other Italian regions. We find that the mass test campaign decreased the growth rate of Covid-19 by 39% which corresponds to a reduction in the total additional cases of 18%, 30% and 56% within ten, twenty and forty days from the intervention date, respectively. Our results suggest that mass testing campaigns are useful instruments for mitigating the pandemic.

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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