Influenza returns with a season dominated by clade 3C.2a1b.2a.2 A(H3N2) viruses, WHO European Region, 2021/22
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Angeliki Melidou Csaba Ködmön Karen Nahapetyan Annette Kraus Erik Alm Cornelia Adlhoch Piers Mooks Nishi Dave Carlos Carvalho Margaux MI Meslé Rodney Daniels Richard Pebody Members of the WHO European Region influenza surveillance networkAbstract
In the WHO European Region, COVID-19 non-pharmaceutical interventions continued slowing influenza circulation in the 2021/22 season, with reduced characterisation data. A(H3) predominated and, in some countries, co-circulated with A(H1)pdm09 and B/Victoria viruses. No B/Yamagata virus detections were confirmed. Substantial proportions of characterised circulating virus subtypes or lineages differed antigenically from their respective northern hemisphere vaccine components. Appropriate levels of influenza virus characterisations should be maintained until the season end and in future seasons, when surveillance is adapted to integrate SARS-CoV-2.
Journal details
Journal Eurosurveillance
Volume 27
Issue number 15
Pages pii=2200255
Available online
Publication date
Full text links
Publisher website (DOI) 10.2807/1560-7917.es.2022.27.15.2200255
Europe PubMed Central 35426364
Pubmed 35426364