no, none of those potential exposures are significant enough to warrant anything more than some distance. the virus falls to the ground and dies (even in the ai

no, none of those potential exposures are significant enough to warrant anything more than some distance. the virus falls to the ground and dies (even in the air) in droves all by itself. these aren't hardy viruses. you'd need to take an unnecessary risk like eating lunch in a group to create a significant exposure in that environment.