[OldFriend]

Normally the right vaccine would have been created which would have prevented such wide outbreaks.

[kdono]

Normally the right vaccine would have been created which would have prevented such wide outbreaks

1/4 of the H3N2 isolates are Panama and 3/4 are Fujian even though Panama has been in every vaccine batch since 2000. Thus, some people have had Panama 4 years in a row, but it still causes 1/4 of the H3N2 infections this season in the US (and at this time, almost all of the flu cases are H3N2).