There were tons of articles and studies right about the time masks became a big thing saying they were useless against covid.A nurse/saleswoman that lived across the alley from my GF in 2020 showed be the cases and cases of blue/white surgical masks she had as samples to give to offices as samples.
They ALL had a written statement on the sides that read, "Not effectice for use in preventing the spread of corona viruses."
And yet morons all over still wear the stupid things....even when walking or driving alone. I see it daily in Macongo.
At the same time, there were studies showing how covid virus was no more transmittable than the common cold... similar particle size, similar physics, etc.


