Many vaccines have had a high incidence of failure, injury, death... Trusting them is a crap-shoot.
After Tetanus, we had SIDS (killing babies), after RONA, we have SADS (killing adults) with AIDS, Fraudci killed many homosexuals with the AIDS drugs.
(Then had to pull them).
Hard to ever trust 'em again, thankfully most are not needed.
I got the flu in my life just once, and it was after a flu-shot, so even back then (almost 2 decades) I said never-again...
Ill take my chances...