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业储备相结合,为未来的防控决策与疫情应对做好 2022[EB/OL]. (2022-07-06) [2022-07-14]. https://www.
充分准备。 who.int/publications/m/item/weekly-epidemiological-update-on-
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3.3 加快推进疫苗全程接种,加快推进应对新变异
[9]UKHSA. SARS-CoV-2 variants of concern and variants under
株的疫苗和特效药物研发 目前研究证据表明与野 investigation in England Technical briefing 41[EB/OL]. (2022-
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亡具有较好的保护效果。因此全人群疫苗接种对于
[10]HUI J,CHANGCHENG W,WENBO X,et al. Notes from the
控制 Omicron 变异株流行仍是首要选择。相对野生株,
Field: First Imported Case of SARS-CoV-2 Omicron Subvariant
现已上市的疫苗对变异株预防感染的效力有所降低, BA.5—Shanghai Municipality,China,May 13,2022[J]. China
因此还应加强针对变异株新型疫苗的研发。 CDC Weekly,2022.
3.4 加强境外输入风险管控 目前,国内疫情防控 [11]Daily Beast. This New ‘Ninja’ COVID Variant Is the Most
Dangerous One Yet[EB/OL]. (2022-06-08) [2022-07-14].
形势虽然持续向好,但境外疫情仍然呈现蔓延扩散
https://www.thedailybeast.com/why-the-new-ba5-covid-variant-is-
趋势,多个国家报告 COVID-19 确诊病例数继续攀升,
the-most-dangerous-one-yet.
境外疫情输入风险持续存在。如果入境管控工作实施 [12]MSN. Warning issued about new symptom of Covid strain that shows
不力,可能导致国内良好的疫情防控势头逆转,前期 up at night[EB/OL]. (2022-07-08) [2022-07-14]. https://
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symptom-of-covid-strain-that-shows-up-at-night/ar-AAZoahA.
更需要加强入境管控,严防境外输入,减轻国内疫
[13]CDC. Variant Proportions[EB/OL]. (2022-07-13) [2022-07-14].
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作者贡献:吴俣主要负责文献的查询和文章的撰 [14]香港特别行政区政府 . 卫生防护中心调查新增核酸检测和快
写;刘珏参与文章的修订;刘民、梁万年参与文章 速抗原测试新型冠状病毒阳性个案以及一宗涉及 Omicron 变
异病毒株 BA.5 亚系的输入个案[EB/OL]. (2022-04-14)
的整体构思,负责文章的质量控制及审校,对文章
[2022-07-14]. https://sc.isd.gov.hk/TuniS/www.info.gov.hk/gia/ge
整体负责。
neral/202204/14/P2022041400647.htm.
本文无利益冲突。 [15]QIANFANG G,CHANGCHENG W,AIPING D,et al. Notes from
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