Quote:
Originally Posted by Erider
Cochrane Library
The pooled results of RCTs did not show a clear reduction in respiratory viral infection with the use of medical/surgical masks. There were no clear differences between the use of medical/surgical masks compared with N95/P2 respirators in healthcare workers when used in routine care to reduce respiratory viral infection.
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You forgot this little tidbit in the study you were quoting.....
Many studies were conducted during non‐epidemic influenza periods. Several were conducted during the 2009 H1N1 influenza pandemic, and others in epidemic influenza seasons up to 2016.
Therefore, many studies were conducted in the context of lower respiratory viral circulation and transmission compared to COVID‐19.