So, you catch it when someone sneezes on you but you/your doctor don't think it's a good idea if someone sitting behind you on a bus is wearing a mask when they sneeze? :confused:
Is it established now that Covid-19 cannot spread through airborne route? This is from a Feb 28 article:
While both the flu and COVID-19 may be transmitted in similar ways (see the Similarities section above), there is also a possible difference: COVID-19 might be spread through the airborne route, meaning that tiny droplets remaining in the air could cause disease in others even after the ill person is no longer near.
(
https://www.hopkinsmedicine.org/heal...019-vs-the-flu)
Obviously you would discard a mask that's full of biological crap just as you would discard a builder's dust mask that's full of physical crap!