Do we need to mark Covid " the unseen enemy " with a different approach . Is there a chemical that we could use to highlight the virus under ultraviolet lights or a fluorescent colour in daylight . You can't kill what you can't find or see . Let's show it up so we know where it is and kill the virus on surfaces,cloths . We could even have facemasks impregnated with the marker to see if folk have the virus . Just an idea that would and should help fight the invisible enemy . What ideas are out there ??????