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Abstract

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.

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/content/10.2807/1560-7917.ES.2021.26.23.2100447
2021-06-10
2024-12-21
/content/10.2807/1560-7917.ES.2021.26.23.2100447
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The SARS-CoV-2 B.1.351 lineage (VOC β) is outgrowing the B.1.1.7 lineage (VOC α) in some French regions in April 2021
<p class="citation"> <span>Citation style for this article:</span> <span class="meta-value authors"> <a href="/search?value1=B%C3%A9n%C3%A9dicte+Roquebert&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Roquebert Bénédicte</a>, <a href="/search?value1=Sabine+Trombert-Paolantoni&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Trombert-Paolantoni Sabine</a>, <a href="/search?value1=St%C3%A9phanie+Haim-Boukobza&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Haim-Boukobza Stéphanie</a>, <a href="/search?value1=Emmanuel+Lecorche&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Lecorche Emmanuel</a>, <a href="/search?value1=Laura+Verdurme&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Verdurme Laura</a>, <a href="/search?value1=Vincent+Foulongne&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Foulongne Vincent</a>, <a href="/search?value1=Mircea+T.+Sofonea&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Sofonea Mircea T.</a>, <a href="/search?value1=Samuel+Alizon&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Alizon Samuel</a></span>. The SARS-CoV-2 B.1.351 lineage (VOC β) is outgrowing the B.1.1.7 lineage (VOC α) in some French regions in April 2021. <a href="/content/ecdc">Euro Surveill.</a> 2021;26(23):pii=2100447. <a href="https://doi.org/10.2807/1560-7917.ES.2021.26.23.2100447" title="doi link" target="_blank">https://doi.org/10.2807/1560-7917.ES.2021.26.23.2100447</a> <span class="ES_Article_citation"> <span class="generated">Received</span>: 18 May 2021;&nbsp;&nbsp; <span class="generated">Accepted</span>: 07 Jun 2021 </span> </p>
/content/10.2807/1560-7917.ES.2021.26.23.2100447
/content/10.2807/1560-7917.ES.2021.26.23.2100447
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