In late January the Cochrane Study was released. This was one of the largest and most comprehensive studies on masking that found masks do almost nothing to prevent the spread of respiratory diseases.
Before 2020 all doctors knew this was a fact. Then came Dr. Evil, Tony Fauci, and his half-truths and lies. In 2020 Fauci decided masks should be worn to prevent the spread of COVID even on healthy people. And, sadly 99% of the medical community went along with this madness.
The Cochrane Study found that masks were worthless in preventing the spread of COVID.