29 CNN on Oxford Epidemiologist, Tom Jefferson, on the efficacy of masks:... “There is no evidence that they [masks] make any difference.” (files.catbox.moe) posted 245 days ago by purkiss80 245 days ago by purkiss80 +29 / -0 Your browser does not support videos. 6 comments share 6 comments share save hide report block hide replies
"The data are less strong"