The World Health Network, if which I am a part. I may have even signed this letter, I know I was asked ... think I might have missed it with all the other goings on in my ife
Nonsense, the evidence of the efficacy of N95/FFP2 masks is overwhelming. It's physics. They are certfied to work. All the so-called evidence they don't work or there is no evidence are pretty much all "discovering" one thing - They don't work when you're not wearing them!
I recall one study in Canadian healthcare that found "no evidence". I calculated, using their own data, that even
if every single potental transmission had been blocked while using a mask - the study would have found "no evidence". The methodology was incapable of finding any evidence.
They're still incredibly cost effective in healthcare. Nosocomial infections cost the US alone some $40 billion a year in
direct medical costs and another $100 billion in other costs (lost work time, death etc). One study found -
That said, I'm convinced that if we focused on HEPA and Far-UVC in Schools, healthcare, and workplaces we would quite quickly eliminate a whole range of airborne pathogens. Could you imagine never even getting a cold again?