Laboratoire Cerba, Saint Ouen L'Aumône, France.
Laboratoire de Virologie, CHU de Montpellier, Montpellier, France.
Euro Surveill. 2021 Jun;26(23). doi: 10.2807/1560-7917.ES.2021.26.23.2100447.
To assess SARS-CoV-2 variants spread, we analysed 36,590 variant-specific reverse-transcription-PCR tests performed on samples from 12 April-7 May 2021 in France. In this period, contrarily to January-March 2021, variants of concern (VOC) β (B.1.351 lineage) and/or γ (P.1 lineage) had a significant transmission advantage over VOC α (B.1.1.7 lineage) in Île-de-France (15.8%; 95% confidence interval (CI): 15.5-16.2) and Hauts-de-France (17.3%; 95% CI: 15.9-18.7) regions. This is consistent with VOC β's immune evasion abilities and high proportions of prior-SARS-CoV-2-infected persons in these regions.
为了评估 SARS-CoV-2 变体的传播情况，我们分析了 2021 年 4 月 12 日至 5 月 7 日在法国进行的 36590 项针对特定变体的逆转录-PCR 检测。在此期间，与 2021 年 1 月至 3 月相比，令人关注的变异体（VOC）β（B.1.351 谱系）和/或γ（P.1 谱系）在法兰西岛大区（15.8%；95%置信区间（CI）：15.5-16.2）和上法兰西大区（17.3%；95%CI：15.9-18.7）的传播优势明显高于 VOC α（B.1.1.7 谱系）。这与 VOC β 的免疫逃逸能力以及这些地区先前感染过 SARS-CoV-2 的人群比例较高相一致。
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