BMJ:勤洗手,戴口罩,“一米线”可使新冠肺炎传播风险降低50%

2021-11-22 MedSci原创 MedSci原创

勤洗手、戴口罩和保持社交距离可降低COVID-19发病率,未来需研究在COVID-19疫苗接种的背景下公共卫生措施的有效性

新冠肺炎对全球公共卫生和经济产生了深远影响,截至2021年10月14日,全球共有239007 759确诊病例,导致4871841 人死亡。新冠肺炎疫苗接种方案是安全有效,但疫苗并不能提供100%的保护,目前尚不清楚疫苗对未来Sars-cov-2传播的预防效果。公共卫生(或非药物性)干预措施有助于对抗通过接触性、飞沫和气溶胶传播的呼吸道感染。鉴于Sars-cov-2的高传染性,确定公共卫生干预措施的效果时至关重要的。近日研究人员开展回顾研究,考察公共卫生措施在降低Covid-19发病率、SARS-CoV-2传播和Covid-19死亡率方面的有效性。

研究人员收集了MEDLINE、EMABASE、CINHAL、BIOSIS、Joanna Briggs、全球健康和世界卫生组织COVID-19数据库数据,评估公共卫生措施在降低Covid-19发病率、SARS-CoV-2传播和Covid-19死亡率方面的有效性。参与评估的公共卫生措施包括戴口罩、勤洗手和保持社交距离。

总计72项研究纳入本次荟萃研究,其中35项评估了个人公共卫生措施,37项评估了多项公共卫生措施,又称“一揽子干预措施”。有8项研究表明表明,勤洗手(相对风险0.47)、戴口罩(0.47)和保持社交距离(0.75)可降低COVID-19发病率。由于研究的异质性,无法对隔离、普遍封锁和关闭边境、学校和工作场所的结果进行分析。

非药物措施对新冠肺炎感染风险的影响

研究证实,勤洗手、戴口罩和保持社交距离可降低COVID-19发病率,未来需研究在COVID-19疫苗接种的背景下公共卫生措施的有效性

原始出处:

Nicole L De La Mata et al. Effectiveness of public health measures in reducing the incidence of covid-19, SARS-CoV-2 transmission, and covid-19 mortality: systematic review and meta-analysis.BMJ. 18 November, 2021.

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    2022-02-08 gaoxiaoe
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    2022-04-18 qjddjq
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    2021-11-22 ms5000001897288657

    学习

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