The FAR-UVC light could be run all the time in a building without harming humans. I wonder if that would still be the case if putting it down someone’s airway (without skin). I'm guessing they can't shove it all the way down into the lungs though.
I can see this kind of discussion by a CEO in the company headquarters talking with his scientists. Maybe not so much in public. I've read that the UVC damages the virus by somehow making the “T” part of the DNA (RNA?) code want to combine with other “T”s, and thus disrupts and destroys the code.
I'm guessing that folks have known about that for years, and I imagine they are trying to figure out how to mimic that type of rearrangement using drugs.
They actually sell FAR- UVC bulbs and even use them in some home air cleaners.
Here’s one: https://sterilray.com
There are more.
I think it would be a viable solution for small businesses.
Here’s another article about it:
https://www.crr.columbia.edu/research/using-power-light-preventing-airborne-spread-coronavirus-and-influenza-virus
Good grief. All Trump did was ask about it, and the media goes nuts! Our president is listening and open minded to all kinds of ideas.