Covid-19: is France still lagging behind in sequencing?

THE CHEKING PROCESS – Determining the complete genomes of the viruses present in the positive samples is the only precise way to monitor the circulation of Sars-CoV-2 variants.

THE QUESTION. Sure CNews, on May 3, Philippe Juvin, head of the emergency department at the Georges-Pompidou European Hospital (HEGP) and mayor Les Républicains de la Garenne-Colombes, assured that France “Did not give itself the means to identify the variants”. As proof, he claims the low number of complete genomes published by France in the international database. Gisaid .

He assures that only “0.4% of samples were sequenced, against 30% in Great Britain”. Are these figures correct? Is France doing enough?

CHECKS. Let us perhaps recall in the preamble the difference between screening and sequencing. The first technique is to look in positive samples for a series of particular letters that are believed to be characteristic of a variant. Half of the samples

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