Virological surveillance report of the NRC influenza for season 2021-2022

Last updated on 2-1-2024 by Cyril Barbezange

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Sci. report, recommendat°, guidance doc., directive, monograph


Article written during project(s) : 


Based on the sentinel surveillance networks for influenza-like illness (ILI) and severe acute respiratory infections (SARI), the 2021-2022 season was characterized by the return of seasonal influenza viruses, cause an epidemic wave in Spring, so later than pre-COVID season. Seasonal influenza A viruses of the H3N2 subtype clearly dominated over the H1N1 subtype and the influenza B viruses. SARS-CoV-2 virus continued to intensively circulate during the whole period with several epidemic waves occurring throughout the season. Respiratory syncytial virus was not responsible for a true epidemic…

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