17 Vox: The new scientific review on masks and Covid isn’t what you think (archive.ph) posted 1 year ago by Ahaus667 1 year ago by Ahaus667 +17 / -0 7 comments share 7 comments share save hide report block hide replies
The author basically blows off the meta analysis because it mostly reviews flu and then reiterates that bangladesh study that was so shitty it found that red masks were effective while blue masks weren't (or contrariwise, I don't remember).
IIRC, surgical masks scored in between those two color masks.