Some years ago I ran a computer maintenance operation on an Army base right next to the bay (salt water).  We could plot an exponential rise in pc board corrosion based on distance from the water.  But 600 feet inland, there was still corrosion.  That's what microdroplets do.  They are airborne, and have a finite lifetime (averaging milliseconds, but based mostly on the ambient humidity and temperature.  Statistical, but even after 3 sigma there are SOME floating.)  600 foot radius from one of these patients?

You might have to condemn the entire hospital if you take one of these patients in.  Lives lost are then far in excess of lives saved, so this is looking to me like tents in the desert, or somewhere isolated from the cities.  That's okay with me if that's what we have to do, I'd just like to see a reality orientation from the gubbermint(s).