Remember that vaccination status isn't uniformly distributed, so communities with 35% of people fully vaccinated, even with 20% of that having had it, will stil

Remember that vaccination status isn't uniformly distributed, so communities with 35% of people fully vaccinated, even with 20% of that having had it, will still see it spread with ease, especially as restrictions are dropped. That said, herd immunity thresholds vary massively. They're much lower in, say, Wyoming, than NYC.