Re:Why doesn’t natural immunity count in the US?
by tdfx on Wednesday September 15, 2021 @05:03AM
(#28536850)
> N95s or basic cloth masks are a relatively straightforward way to get a population on the other side of that threshold, even if some people wear them incorrectly were just unlucky.
Controlled tests (with correct fitting) show cloth masks at around 10% efficiency and surgical masks at around 12% efficiency, vs up to 60% for correctly fitted R95/KN95 masks. The difference is huge. The measures that most people are taking with their loosely-fitting cloth masks are having negligible impact on coronavirus transmission.
Controlled tests (with correct fitting) show cloth masks at around 10% efficiency and surgical masks at around 12% efficiency, vs up to 60% for correctly fitted R95/KN95 masks. The difference is huge. The measures that most people are taking with their loosely-fitting cloth masks are having negligible impact on coronavirus transmission.
[0] https://aip.scitation.org/doi/10.1063/5.0057100