3 year report Swiss national SARS-CoV-2 genomic and variants surveillance program (2021-2023)
Circulation des variants SARS-CoV-2
Niveau national - rapport mensuel:
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of May, June and July 2024
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of March and April 2024
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of February 2024
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of January 2024
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of December 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of November 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of October 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of September 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of August 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of July 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of June 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of May 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of April 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of March 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of February 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of January 2023
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of December 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of November 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of October 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of September 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of August 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of July 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of June 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of May 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of April 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of March 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of February 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of January 2022
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of December
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of November
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of October
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of September
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of August
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of July
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of June
Swiss national SARS-CoV-2 genomic and variants surveillance program: report of the month of May
Swiss national SARS-CoV-2 genomic and variants surveillance program: brief intermediate report, focus on C.36.3
Swiss national SARS-CoV-2 genomic and variants surveillance program: first report March-April 2021
Région genevoise - rapport hebdomadaire:
Week 1-2 - Week 3-4 - Week 5-6 - Week 7-8 - Week 9-10 - Week 11-12 - Week 13-14 - Week 15-16 - Week 17-19 - Week 20-21 - Week 22-24 - Week 25-28 - Week 29-32 - Week 33-34 - Week 35-36 - Week 37-39 - Week 40-41 - Week 42-45 - Week 46-49
Week 1 - Week 2 - Week 3 - Week 4 - Week 5 - Week 6 - Week 7 - Week 8 - Week 9 - Week 10-11 - Week 12 - Week 13 - Week 14 - Week 15 - Week 16-17 - Week 18-19 - Week 20-21 - Week 22-23 - Week 24-25 - Week 26-27 - Week 28-29 - Week 30-31 - Week 32-33 - Week 34-35 - Week 36-37 - Week 38-39 - Week 40-41 - Week 42-43 - Week 44-45 - Week 46-47 - Week 48-49 - Week 50-52
Week 3 - Week 4 - Week 5 - Week 6 - Week 7 - Week 8 - Week 9 - Week 10 - Week 11 - Week 12 - Week 13 - Week 14 - Week 15 - Week 16 - Week 17 - Week 18 - Week 19 - Week 20 - Week 21 - Week 22 - Week 23 - Week 24 - Week 25 - Week 26 - Week 27 - Week 28 - Week 29 - Week 30 - Week 31 - Week 32 - Week 33-34 - Week 35-36 - Week 37-38 - Week 39-40 - Week 41-42 - Week 43 - Week 44 - Week 45 - Week 46 - Week 47 - Week 48 - Week 49 - Week 50 - Week 51
Surveillance des mutations par PCR à Genève
Les sous-lignées BA.4 et BA.5 d'Omicron contiennent une délétion qui entraîne un échec de l'amplification de la cible du gène S dans notre test PCR (appelée « S-gene dropout »). Cette délétion n'est pas retrouvée dans le variant BA.2 qui est devenu majoritaire en mars 2022 dans la région genevoise. Par conséquent, ce « S-gene dropout » peut être utilisé comme proxy pour suivre le remplacement de BA.2 par les lignées BA.4 et BA.5.
Comme on le voit ci-dessous, le pourcentage de tests PCR avec « S-gene dropout » a rapidement augmenté au courant du mois de juin, pendant lequel les variants BA.4/5 ont remplacé BA.2.
Au vu de ces résultats, depuis la semaine 26, le laboratoire de virologie ne fait plus systématiquement de PCR additionnelle à la recherche du S-gene DropOut. Le suivi des variants est assuré par séquençage dans le cadre du programme national de séquençage du SARS-CoV-2.
