What has always puzzled me about Covid guidelines is that we have an analogue for airborne infection spread which is easily understood and easily verified by ordinary people: cigarette smoke.
If you can smell someone smoking near you, you are being exposed to their germs too. Simples! And cigarette smoke travels a lot further than 6ft/2m!
@KimSJ Or their perfume, or their sweat, which can be more widely useful indicators now that so few people smoke. I generally reckon that if I can smell anything at all about someone then I've got too close to them. (But this is generally for a fraction of a second whilst cycling past, so it doesn't bother me *too* much.)
@TimWardCam @KimSJ aren't volatile scent molecules able to be carried on much smaller airborne particles than a complex virus?
@mjr @TimWardCam @KimSJ The Covid virus is about 80 nanometers in size. Smaller than a smoke particle.
