UV-disinfection became popular during the COVID-19 pandemic

It is not new. People have been using UV disinfection for well over a centure. Wikipedia notes that Arthur Downes and Thomas P. Blunt published a paper on using short wave length light to kill bacteria.

Niels Finsen received a Nobel prize in 1903 for using UV light to treat tuberculosis luposa. Marseille was using UV to disinfect water in 1910.

Hotels often use UV light to disinfect bathrooms.

I suspect that there are LEDs designed to emit UV rays.

The thing that surprised me is that I have seen little from the health department about UV rays. Sunlight breaks up COVID19. One would expect UV to do the same.

Our health officials were slow in talking about vitamin D and COVID. They banned the use of steroids to help people suffering for cytokine storms.

UV technology is over a century old. It is weird that we have not seen a great deal of info on how UV light could help in the fight against COVID.

!hivebits