(That was wraper mentioned the 'guilt by association' thing, thanks wraper).
Oh yeah, and don't forget the U.S. border crisis:
NO SHOT REQUIRED, upon entry. Funny that, it's like, suddenly, there is no COVID.
I can't speak to any COVID protocol or procedure, when border crosser 'encounters' happen, with patrols...no real press coverage on that, so I'm not sure. Probably, border patrol has a protocol, for offering (vax or boosters);...but they're coming across, and in, regardless.