I thought a little about what you said. To be honest, I wasn't basing my definition of full immunity on a dictionary. Even though English is my second language lol. I was basing it on my lived experience, as the expression goes. I grew up in Africa and the Middle East and I was subjected to a LOT of vaccinations. More than you folks in the West. Heck, maybe we were the guinea pigs 😒 In fact, most of my "smart" cousins are doctors who advocate vaccines because that's what you study in college when you are smart 🙄 And there's that whole pesky thing about ridding the world of small pox thanks to vaccinations. Anyways, point well-taken.  The point I was making is the REVERSAL of logic whereby to be protected by a vaccine, first you need other people to be vaccinated. It used to be vaccines protect you from other people, infectious or not. Hence the debasement of language. QED.