Like I said, it is as simple as everyone taking their damn shoes off (in some locations). I work in a clinic, have for almost 20 years, and I have known this since I started, that we apply bandaids to a sieve.
You jest sir! Taking ones shoes off indoors (or somewhere) will cure disease? Do you also still believe in bloodletting? Does someone in a mask dancing around you aid in your health?
I am a descendent of people who survived Bubonic and Pnuemonial Plague, Smallpox, and all sorts of Influenzas. In all my adult life, I have never once caught The Common Cold or Flu (but so mildly at 12). I earned that genetic protection one gene at a time through the survival of some ancestors and the deaths of others.
How dare you say that some of my loser ancestors would have survived had they merely taken off their shoes in their mud&wattle dirt-floored serf huts!