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Introductions and early spread of SARS-CoV-2 in France, 24 January to 23 March 2020
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View Affiliations Hide AffiliationsEtienne Simon-Loriereetienne.simon-loriere pasteur.frand Sylvie van der Werfsylvie.van-der-werf pasteur.fr
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Citation style for this article: . Introductions and early spread of SARS-CoV-2 in France, 24 January to 23 March 2020. Euro Surveill. 2020;25(26):pii=2001200. https://doi.org/10.2807/1560-7917.ES.2020.25.26.2001200 Received: 15 Jun 2020; Accepted: 02 Jul 2020
Abstract
Following SARS-CoV-2 emergence in China, a specific surveillance was implemented in France. Phylogenetic analysis of sequences retrieved through this surveillance suggests that detected initial introductions, involving non-clade G viruses, did not seed local transmission. Nevertheless, identification of clade G variants subsequently circulating in the country, with the earliest from a patient who neither travelled to risk areas nor had contact with travellers, suggests that SARS-CoV-2 might have been present before the first recorded local cases.
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