The so-called 'paper' is fairly obviously a joke.  Even if it was not, I put a lot more stock in papers done back when we still had science.  That is to say, pre-2020.  There are plenty showing that masks of any sort are questionable at best against most viruses, and cloth masks are flat out dangerous to one's health and serve no purpose.  Obviously Dr. Fausti was well aware of this and he said so early on.  Later, in a desperate attempt to make people sick with bacterial pneumonia (which would be quietly counted as 'covid-19'), he flip-flopped (the flopped again to go double mask!)  The reason for trying to bump the 'covid-19' count was to further up the panic attack against the 'tard class.  Worked.

They somehow got the sheeple to believe that surgeons wear masks so they don't catch the flu from the person they are operating on.  Back then I wouldn't have thought this level of retardation to be possible.  Now I'll not be shocked at anything along these lines.