2 documents found, page 1 of 1
Predominance of influenza virus A(H3N2) 3C.2a1b and A(H1N1)pdm09 6B.1A5A geneti...
Melidou, Angeliki; Hungnes, Olav; Pereyaslov, Dmitriy; Adlhoch, Cornelia; Segaloff, Hannah; Robesyn, Emmanuel; Penttinen, Pasi; Olsen, Sonja J.Background: The 2018/2019 influenza season in the WHO European Region was dominated by influenza A (H1N1)pdm09 and (H3N2) viruses, with very few influenza B viruses detected. Methods: Countries in the European Region reported virus characterization data to The European Surveillance System for weeks 40/2018 to 20/2019. These virus antigenic and genetic characterization and haemagglutinin (HA) sequence data were ...
Predominance of influenza A(H1N1)pdm09 virus genetic subclade 6B.1 and influenz...
Broberg, Eeva; Melidou, Angeliki; Prosenc, Katarina; Bragstad, Karoline; Hungnes, OlavInfluenza A(H1N1)pdm09 viruses predominated in the European influenza 2015/16 season. Most analysed viruses clustered in a new genetic subclade 6B.1, antigenically similar to the northern hemisphere vaccine component A/California/7/2009. The predominant influenza B lineage was Victoria compared with Yamagata in the previous season. It remains to be evaluated at the end of the season if these changes affected th...