VIcยฎ FooReeee ๐ ๐ ๐ฐ (nprofileโฆre5n)
It's a function of the number of hosts, and time. When it's targetted at a particular variant, at first it's nearly if not as good as the tetanus ones. But if you're taking a KP.2 vaccine today...it still helps reduce your chance of death but you're, say, almost certainly still getting infected (KP.2 hasn't been dominant here in...awhile)