A lot of the flu shots are bogus in that they are marginally effective and have some apparently dangerous and longer-term deadly additional elements in them, but they at least go by the old vaccine model.
The “vaccines” we’re getting forced now aren’t even that:
https://banned.video/watch?id=60076fda8c03b74ce0e2f6f5
Vaccine is not as effective in antibody binding with some of the new mutations. Maybe this will be modified in later versions. T-cell immunity is still OK though.