So—possibly goofy idea, proposed by someone with absolutely no medical background whatsoever:
One of the things I keep seeing about the coronavirus is that one of the reasons outdoor environments may be less transmissive (in addition to the natural ventilation) is that the ultraviolet wavelengths of sunlight break down the virus. (This doesn’t mean the virus can’t be transmitted outdoors, only that it breaks down faster—wear your masks!)
So what if we required that all indoor public spaces had to use lighting that consisted of at least, oh, 25% high-UV output sources like black light bulbs? It wouldn’t be anything like a guaranteed knockout punch for the virus, but might at least help to speed the breakdown of any airborne infectious particulates.
As a bonus—whether or not this would be a good bonus is an exercise left up to the individual—everything would get a bit of a cyberpunk glow to it, especially into the evening hours, and we might see a resurgence of ‘70s/‘90s-style UV-reactive neons, colors, and fabrics in fashion and pop art. 😉
Plus, who knew that LED black lights were so plentiful and relatively inexpensive? I’m tempted to find some way to work these into the home decor, whether or not there’s any medical benefit! (I don’t think Prairie would be as excited about the idea, though….)
Update: It’s been pointed out on Facebook that cancer might be a concern of notably increased UV levels. This, obviously, is why I started this post by noting that I’m not a medical professional (or even amateur). ;)