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3. Early assessment of diffusion and possible expansion of SARS-CoV-2 Lineage 20I/501Y.V1 (B.1.1.7, variant of concern 202012/01) in France, January to March 2021

Author

Gaymard, Alexandre, Bosetti, Paolo, Feri, Adeline, Destras, Gregory, Enouf, Vincent, Andronico, Alessio, Burrel, Sonia, Behillil, Sylvie, Sauvage, Claire, Bal, Antonin, Morfin, Florence, Van Der Werf, Sylvie, Josset, Laurence, Blanquart, François, Coignard, Bruno, Cauchemez, Simon, Lina, Bruno, Gault, Elyanne, Moreau, Frédérique, Brichler, Ségolène, Delagrèverie, Héloïse, Descamps, Diane, Charpentier, Charlotte, Rozenberg, Flore, L'Honneur, Anne-Sophie, Veyer, David, Bélec, Laurent, Fourati, Slim, Rodriguez, Christophe, Pawlotsky, Jean-Michel, Fourgeaud, Jacques, Abid, Hanène, Roque-Afonso, Anne-Marie, Fenaux, Honorine, Jary, Aude, Marot, Stéphane, Salmona, Maud, Chaix, Marie-Laure, Morand-Joubert, Laurence, Schnuriger, Aurélie, Juillet, Stéphanie Marque, Bargain, Pauline, Poggi, Cécile, Chollet, Lionel, Guillaume, Clémence, Guinard, Jérôme, Vallet, Sophie, Pilorgé, Léa, Schvoerer, Evelyne, Hartard, Cédric, Castelain, Sandrine, François, Catherine, Ducancelle, Alexandra, Lefeuvre, Caroline, Lepiller, Quentin, Marty-Quinternet, Solène, Bellecave, Pantxika, Tumiotto, Camille, Dina, Julia, Le Gouil, Meriadeg, Henquell, Cécile, Mirand, Audrey, Césaire, Raymond, de Rougemont, Alexis, Auvray, Christelle, Larrat, Sylvie, Némoz, Benjamin, Tinez, Claire, Guigon, Aurélie, Hantz, Sébastien, Rogez, Sylvie, Dos Santos, Georges, Perez, Pascale, Jost, Christelle, Montes, Brigitte, Foulongne, Vincent, Imbert, Berthe-Marie, Bressollette, Céline, Giordanengo, Valérie, Gonfrier, Géraldine, Garcia, Magali, Lévêque, Nicolas, Brodard, Véronique, Moret, Hélène, Thibault, Vincent, Maillard, Anne, Jaffar-Bandjee, Marie-Christine, Gueudin, Marie, Plantier, Jean-Christophe, Pozzetto, Bruno, Pillet, Sylvie, Fafi-Kremer, Samira, Solis, Morgane, Izopet, Jacques, Trémeaux, Pauline, Stefic, Karl, Handala, Lynda, Billaud, Geneviève, Frobert, Emilie, Mérens, Audrey, Bigaillon, Christine, Desroches, Marine, Thepenier, Cédric, Janvier, Frédéric, Otto, Marie-Pierre, Roquebert, Bénédicte, Haïm-Boukobza, Stéphanie, Centre National de Référence des Virus des Infections Respiratoires (dont la Grippe) [Lyon] (CNR - laboratoire associé), Institut des Agents Infectieux [Lyon] (IAI), Hospices Civils de Lyon (HCL)-Hospices Civils de Lyon (HCL), Hospices Civils de Lyon (HCL), Virpath-Grippe, de l'émergence au contrôle -- Virpath-Influenza, from emergence to control (Virpath), Centre International de Recherche en Infectiologie (CIRI), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Modélisation mathématique des maladies infectieuses - Mathematical modelling of Infectious Diseases, Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS), Direction des maladies infectieuses - Infectious Diseases Division [Saint-Maurice], Santé publique France - French National Public Health Agency [Saint-Maurice, France], Centre National de Référence des virus des infections respiratoires (dont la grippe) - National Reference Center Virus Influenzae [Paris] (CNR - laboratoire coordonnateur), Institut Pasteur [Paris] (IP), Génétique Moléculaire des Virus à ARN - Molecular Genetics of RNA Viruses (GMV-ARN (UMR_3569 / U-Pasteur_2)), Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Centre interdisciplinaire de recherche en biologie (CIRB), Labex MemoLife, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Collège de France (CdF (institution))-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Infection, Anti-microbiens, Modélisation, Evolution (IAME (UMR_S_1137 / U1137)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité)-Université Sorbonne Paris Nord, Agents infectieux, résistance et chimiothérapie - UR UPJV 4294 (AGIR ), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie, Laboratoire de Virologie [CHU Amiens], CHU Amiens-Picardie, ANRS - Maladies infectieuses émergentes (ANRS - MIE), Institut National de la Santé et de la Recherche Médicale (INSERM), We acknowledge financial support from Santé publique France (the French national public health agency), the French Ministry of health (Grant COVIDseq), the Consortium for the surveillance and research on emerging pathogens via microbial genomics (EMERGEN) coordinated by Santé publique France and ANRS Maladies Infectieuses Emergentes, the Investissement d’Avenir programme, the Laboratoire d’Excellence Integrative Biology of Emerging Infectious Diseases programme (grant ANR-10-LABX-62-IBEID), the European Union’s Horizon 2020 research and in-novation programme under grants 101003589 (RECOVER). This work has been supported by the laboratories belonging to the ColVHB network*., ANR-10-LABX-0062,IBEID,Integrative Biology of Emerging Infectious Diseases(2010), European Project: 101003589, H2020-SC1-PHE-CORONAVIRUS-2020,RECOVER(2020), Centre National de Référence des Virus des Infections Respiratoires (dont la Grippe) [Lyon] (CNR), Centre International de Recherche en Infectiologie - UMR (CIRI), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), Centre National de Référence des virus des infections respiratoires (dont la grippe) - National Reference Center Virus Influenzae [Paris] (CNR), Institut Pasteur [Paris], Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Collège de France (CdF (institution))-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Collège de France (CdF (institution))-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Paris (UP)-Université Sorbonne Paris Nord, Gestionnaire, Hal Sorbonne Université, Integrative Biology of Emerging Infectious Diseases - - IBEID2010 - ANR-10-LABX-0062 - LABX - VALID, Rapid European COVID-19 Emergency Response research - RECOVER - - H2020-SC1-PHE-CORONAVIRUS-20202020-02-14 - 2022-02-13 - 101003589 - VALID, Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris)

Subjects
Author's Correction, Paris, medicine.medical_specialty, 2019-20 coronavirus outbreak, Lineage (genetic), Coronavirus disease 2019 (COVID-19), Epidemiology, Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), viral infections, [SDV]Life Sciences [q-bio], Context (language use), Biology, 03 medical and health sciences, 0302 clinical medicine, Virology, medicine, Humans, MESH: COVID-19, MESH: SARS-CoV-2, 030212 general & internal medicine, 030304 developmental biology, COVID, [SDV.MHEP.ME] Life Sciences [q-bio]/Human health and pathology/Emerging diseases, [SDV.MP.VIR] Life Sciences [q-bio]/Microbiology and Parasitology/Virology, 0303 health sciences, [SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases, MESH: Humans, SARS-CoV-2, MESH: Paris, Public Health, Environmental and Occupational Health, COVID-19, [SDV] Life Sciences [q-bio], MESH: France, 20I/501Y.V1, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, surveillance, France, mutation, Rapid Communication, Demography
Abstract

International audience; The emergence of SARS-CoV-2 variant 20I/501Y.V1 (VOC-202012/1 or GR/501Y.V1) is concerning given its increased transmissibility. We reanalysed 11,916 PCR-positive tests (41% of all positive tests) performed on 7-8 January 2021 in France. The prevalence of 20I/501Y.V1 was 3.3% among positive tests nationwide and 6.9% in the Paris region. Analysing the recent rise in the prevalence of 20I/501Y.V1, we estimate that, in the French context, 20I/501Y.V1 is 52-69% more transmissible than the previously circulating lineages, depending on modelling assumptions.

Published
2021

5. Screening for Human Immunodeficiency Virus Infection by Use of a Fourth-Generation Antigen/Antibody Assay and Dried Blood Spots: In-Depth Analysis of Sensitivity and Performance Assessment in a Cross-Sectional Study

Author

Stefic, Karl, primary, Guinard, Jerome, additional, Peytavin, Gilles, additional, Saboni, Leïla, additional, Sommen, Cécile, additional, Sauvage, Claire, additional, Lot, Florence, additional, Laperche, Syria, additional, Velter, Annie, additional, and Barin, Francis, additional

Published
2019
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6. Syphilis testing in blood donors, France, 2007 to 2022.

Author

Laperche S, Sauvage C, Le Cam S, Lot F, Malard L, Gallian P, Pouchol E, Richard P, Morel P, Grange P, Tiberghien P, Benhaddou N, and Dupin N

Subjects
Humans, Male, France epidemiology, Female, Adult, Prevalence, Risk Factors, Middle Aged, Treponema pallidum immunology, Treponema pallidum isolation & purification, Seroepidemiologic Studies, Young Adult, Homosexuality, Male statistics & numerical data, Blood Donors statistics & numerical data, Syphilis epidemiology, Syphilis diagnosis, Syphilis blood, Syphilis Serodiagnosis methods
Abstract

BackgroundSyphilis in blood donors (BD) has increased in many countries.AimWe aimed to describe trends in syphilis seroposivity in BD in France, to identify risk factors and assess if a non-treponemic test (NTT) could define BD having recovered from syphilis for more than 1 year.MethodsThe analysis covered the period 2007 to 2022 and 45,875,939 donations. Of the 474 BD syphilis-positive in 2022, 429 underwent additional investigations with an NTT. History of syphilis was obtained at the post-donation interview or based on serology results for repeat donors.ResultsUntil 2021, positivity rates remained stable (mean: 1.18/10,000 donations, range: 1.01-1.38). An increased rate was observed in 2022 (1.74/10,000; p = 0.02). Over the whole study period, prevalence was 2.2 times higher in male than in female BD (4.1 times higher in 2022). The proportion of males with an identified risk factor who have sex with men increased from 16.7% in 2007 to 64.9% in 2022. Based on NTT, 79 (18%) of the donors who were seropositive in 2022 were classified as having been infected in the previous year. History of syphilis was available for 30 of them. All had an infection within the previous 3 years. Among seven donors with a syphilis < 12 months before testing, one had an NTT titre ≥ 8, three a titre between 1 and 4, three were negative.ConclusionSyphilis seropositivity increased considerably in BDs in 2022, mostly in males, notably MSM. Available data did not allow appropriate evaluation of the NTT to distinguish recent from past infection.

Published
2024
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7. Early assessment of diffusion and possible expansion of SARS-CoV-2 Lineage 20I/501Y.V1 (B.1.1.7, variant of concern 202012/01) in France, January to March 2021.

Author

Gaymard A, Bosetti P, Feri A, Destras G, Enouf V, Andronico A, Burrel S, Behillil S, Sauvage C, Bal A, Morfin F, Van Der Werf S, Josset L, Blanquart F, Coignard B, Cauchemez S, and Lina B

Subjects
France epidemiology, Humans, Paris, COVID-19 epidemiology, SARS-CoV-2
Abstract

The emergence of SARS-CoV-2 variant 20I/501Y.V1 (VOC-202012/1 or GR/501Y.V1) is concerning given its increased transmissibility. We reanalysed 11,916 PCR-positive tests (41% of all positive tests) performed on 7-8 January 2021 in France. The prevalence of 20I/501Y.V1 was 3.3% among positive tests nationwide and 6.9% in the Paris region. Analysing the recent rise in the prevalence of 20I/501Y.V1, we estimate that, in the French context, 20I/501Y.V1 is 52-69% more transmissible than the previously circulating lineages, depending on modelling assumptions.

Published
2021
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