The recent Danish study was the very first randomized controlled trial involving face masks and COVID-19 that reported (so far), and concluded: "the plausible

The recent Danish study was the very first randomized controlled trial involving face masks and COVID-19 that reported (so far), and concluded: "the plausible effect of the mask intervention ranged all the way from a 46% decrease in infection to a 23% increase" https://www.factcheck.org/2020/11/danish-study-doesnt-prove-masks-dont-work-against-the-coronavirus/ https://www.factcheck.org/2020/11/danish-study-doesnt-prove-...