from WND:

Wearing face-masks — even fancier N95 masks — probably has “little or no” effect in protecting against COVID-19 and the flu compared to not wearing one, according to a massive new British meta-study.

“There is uncertainty about the effects of masks,” concludes a team of 12 international researchers in the study published Jan. 30 in the peer-reviewed U.K. journal Cochrane Database of Systematic Reviews.