Immunity doesn't mean you're invulnerable. The reason the definition was changed is that ignorant hacks assumed immunity to mean invulnerability. In fact 100% protection hasn't been achieved by most vaccines. Polio needed 4 rounds to get 99%-100%. They settled with 2 shots for near 100% protection on purpose: it's good enough. Have you ever received a single day of formal medical training?
Immunity doesn't mean you're invulnerable. The reason the definition was changed is that ignorant hacks assumed immunity to mean invulnerability. In fact 100% protection hasn't been achieved by most vaccines. Polio needed 4 rounds to get 99%-100%. They settled with 2 shots for near 100% protection on purpose: it's good enough. Have you ever received a single day of formal medical training?
Immunity doesn't mean you're invulnerable. The reason the definition was changed is that ignorant hacks assumed immunity to mean invulnerability. In fact 100% protection hasn't been achieved by most vaccines. Polio needed 4 rounds to get 99%-100%. They settled with 2 shots for near 100% protection on purpose: it's good enough. Have you ever received a single day of formal medical training?