But why would the expert (and 100's of scientists) who's investigated pandemics for decades not have known what masks do from the outset to give this advice? They would have certainly had a TON of information already researched. Don't get me wrong I agree that they must add value on public...
https://youtu.be/p6pEcgDmEUk
Quite some u turn from a guy being held up as the biggest covid authority and who’s spent decades becoming an expert on pandemics...