Of the 17 influenza A(H3N2) viruses characterized, 5 were antigenically similar to A/Wisconsin/67/2005 and 12 were antigenically similar to A/Brisbane/10/2007.
Des 17 virus A (H3N2) caractérisés, 5 étaient antigéniquement analogues à A/Wisconsin/67/2005 et 12 virus antigéniquement analogues à A/Brisbane/10/2007.