Yeah, that’s how vaccinations work, dearie. You get an inactivated or dead part of the deadly diseases, and your immune system learns how to fight it without risking your life.
Oh, wait! You weren’t talking about Corona vaccination? You were talking about ANY vaccination, ever, weren’t you? Then we are ALL “positive”, yes. Almost everyone has had SOME vaccination or other. How, then, do you explain that there are many people testing NEGATIVE to Covid-19?
Unless Covid-19 proves to have a quick mutation-rate, those who’ve tested positive are already immune, and won’t need a vaccination. Only those who test negative for it will be needing the vaccine, once it’s ready. That’s how cunning reality is.