Follow references from the link above to get to the data. I gave the summary of findings with links so that people could find the data.Soloist wrote:Well were is the data supporting face coverings? I've posted WHO data before showing the effectiveness of a piece of cloth.Bootstrap wrote:To see the references for the footnotes, look to the main article:
Universal use of face masks for success against COVID-19: evidence and implications for prevention policies
The reason public health experts give us these recommendations is simple: it's the consensus of medical experts who have reviewed the available studies.
So far, there has been little discussion of what I posted or the evidence behind it. But I think this literature review is a great place to start if you want to know what the medical research community can generally agree on at this point.
I think most of the guidelines are inspired by this. It's easy enough to drill down and read the individual articles and learn about the data behind the studies. It just takes time.