RE: RE: RE: RE: RE: RE: Vaccination29 Dec 2020 13:48
Masking somewhat reduces the dose of virus a wearer might receive, via airborne droplets from talking, sneezing or coughing.
But do not forget aerosols are also emitted from the body, via the above means, these contain clouds of particles much smaller than droplets and these can easily be spread by air-conditioning, restaurants and airplanes, which re-circulate air, these should be avoided and hand-washing or social-distancing won't make any real difference.
Aerosols can be spread easily through cotton masks but several layers are better than one.
Not all surgical-grade masks prevent aerosol passage and varying amounts of face-seal perimeter leakage may be a factor.
Thus, even a mask 100% efficient at filtering aerosols (and by extension the larger droplets too) may leak particles where it does not seal around the contours of the face.
The technology is not there to provide the perfect mask but if they help slow the spread they should be worn.
You may still catch the virus but the bodily reaction may be lower in a smaller dose, or the body may produce antibodies sufficient to deal more easily with the virus.
Perhaps better still give everyone, considered vulnerable, an immune booster jab, which is what over 65's were given in their routine seasonal flu' jab.
Hope the Tremor shares keep 'roofing it'.