I just don’t understand your obsession with the Covid vaccine. It’s NOYB whether other ppl get the injection or not. Worry about yourself, wash your hands frequently, wear 2 or 3 masks concurrently, and FFS stay away from other ppl. Stop trying to browbeat ppl on here who aren’t interested in getting the vaccine. It’s starting to become annoying.
Polio requires three boosters (total of four shots) to be considered fully vaccinated.
https://www.cdc.gov/vaccines/vpd/polio/index.html
Yeah, it’s weird because I and everyone I went to school with and everyone I’ve known got a series of vaccines when we were in elementary school and that’s it. I’ve never known any adult who got boosters for pox, polio mmr etc. Tetanus shot(notice they call it a shot and not a vaccine) lasts ten years but most people don’t bother getting one every ten years. The rest afaik are lifetime.
I think some people have a few vaccine companies in their investment portfolio.