https://www.city-journal.org/do-masks-work-a-review-of-the-evidence
Notice there has only been one research study of Covid and masks, the Danish one, and the reasons it was dismissed had to do with politics, not science.
"This study—the first RCT on Covid-19 transmission—apparently had difficulty getting published. After the study’s eventual publication, Vinay Prasad, an M.D. at the University of California, San Francisco, described it as “thoughtful,” “useful,” and “well done,” but noted (with criticism), “Some have turned to social media to ask why a trial that may diminish enthusiasm for masks and may be misinterpreted was published in a top medical journal.”
So even though the study questions the scientific validity of masks we cannot allow it because it may diminish enthusiasm for those masks.
Edited by DHighlander at 17:19:08 on 08/12/21