Neat News 1783 (added 2020-11-17)
UVC light to kill Covid-19 viruses

Public Domain by Newbie~commonswiki
In a supermarket in Hamburg, Germany, UVC lights have been installed at a height so that the UVC radiation kills most Covid-19 viruses in the aerosols, but does not harm humans. This way the number of Covid-19 viruses in the air can be significantly reduced.