I’ve seen all that, worked the field as a PhD data scientist, clinical trial designer, analyst, author, and editor
Yes, some, a few vaccines are necessary, but most are not, with poor quality control, misleading marketing, failure to follow up with side effect monitoring.
You will notice the subject of this thread is a garbage flu vaccine. Flu vaccines do not affect most flu strains and most flu viruses mutate. So it becomes a social conditioning ritual similar to wearing ineffective masks people wear today.
Note that the number of mandatory vaccines in youth has exploded from four in the 1960s to more than 60 in the 2000s.
It’s time for accountability.