There have been extensive randomized controlled trial (RCT) studies, and meta-analysis reviews of RCT studies, which all show that masks and respirators do not work to prevent respiratory influenza-like illnesses, or respiratory illnesses believed to be transmitted by droplets and aerosol...
www.rcreader.com
A lot of information in this one. Even found out some info I hadn't seen before about virulence being inversely proportional to humidity levels, regardless of any other factors. This article explains why social distancing in doors is pretty much useless. I wonder why so many public health officials are so blatantly disregarding actual science, preferring instead to follow public opinion, superstition and the precautionary principle.
"The present paper about masks illustrates the degree to which governments, the mainstream media, and institutional propagandists can decide to operate in a science vacuum, or select only incomplete science that serves their interests. Such recklessness is also certainly the case with the current global lockdown of over 1 billion people, an unprecedented experiment in medical and political history."