Is There a Seasonal Antigenica Virus?

In both hemispheres, what is done is thes w coclobarine centrs that are collecting information and isolating viruses from different countries. And there is always a prevalent one, and there is always some minor antigenica virus is eqlatig together with the more prevalent one. So they has been, when the vaccine recommendations came there was still some case of ah three to be on the side, on the safe side. The the dagonago still imiven. Is three components. No seasonal h one and one, no, si, nos, knowleg twonty one from mati.