Author: Gámbaro, Fabiana; Behillil, Sylvie; Baidaliuk, Artem; Donati, Flora; Albert, Mélanie; Alexandru, Andreea; Vanpeene, Maud; Bizard, Méline; Brisebarre, Angela; Barbet, Marion; Derrar, Fawzi; van der Werf, Sylvie; Enouf, Vincent; Simon-Loriere, Etienne
Title: Introductions and early spread of SARS-CoV-2 in France, 24 January to 23 March 2020 Cord-id: em5ufy4j Document date: 2020_7_2
ID: em5ufy4j
Snippet: 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
Document: 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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