Many, many moons ago, I was given a sugar cube with the polio vaccine. An uncle I never met passed away at age 22 from polio.
During my lifetime the United States eradicated some other maladies that are still in other countries.
When they changed the “scientific” definition of a vaccine, I stopped trusting them.
I got the usual vaccinations when I was a kid: smallpox, polio, TB, and tetanus. Immunity to measles, mumps, chicken pox, etc. were all obtained by having the diseases. Never had a flu shot or any other vaccination as an adult, with the exception of a tetanus shot about 10 or 12 years ago.