The current H5N1 outbreak has been going on for a few years, and the US already has a pretty good system for (slowly) vaccinating around half the population aga

The current H5N1 outbreak has been going on for a few years, and the US already has a pretty good system for (slowly) vaccinating around half the population against the flu. And the US just switched from a quadravalent to a trivalent seasonal flu vaccine because one of the Influenza B strains seems to have disappeared. Would it have made sense to instead keep it quadravalent and add H5N1 to the mix?