2 documents found, page 1 of 1
Predominance of influenza A(H3N2) virus genetic subclade 3C.2a1 during an early...
Melidou, Angeliki; Broberg, Eeva; European region influenza surveillance networkDuring the European 2016/17 influenza season, A(H3N2) viruses have predominated and the majority clustered in genetic subclade 3C.2a1. Genetic analyses showed that circulating viruses have undergone considerable genetic diversification of the haemagglutinin gene from the current vaccine virus A/Hong Kong/4801/2014 (clade 3C.2a), but the antigenic data that is limited by the challenges with the antigenic charact...
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...