Yet Another Study Finds That Masks Work
The twist on this study was that they looked at masks' effectiveness as a function of how virus-rich an environment is. They found that "surgical masking achieves large reductions in infection probability when the maskless infection probability is low, but increasingly smaller reductions when the maskless infection probability is high."
So in other words, masks work extremely well when the viral load is low, and less well when the viral load is high, as you'd expect. They found similar results for N95 masks, which are about an order of magnitude better at preventing infection.
They also considered different combinations of who is wearing a mask. Again, as you'd expect, the found that effectiveness was highest when there is "universal masking," next highest when someone emitting the virus is masked, and next highest when someone exposed to the emitter is wearing a mask.
To me this is kind of like a study proving that trees are made of wood. It's a shame that this kind of research is necessary just because know-nothing COVIDiots, some with political agendas, are acting like adolescents and refusing to believe something they can see with their own eyes.
Header image by cromaconceptovisual from Pixabay
