In November 2020, the Annals of Internal Medicine, an influential scientific journal, published a study called DANMASK-19 (Danish Study to Assess Face Masks for the Protection Against Covid-19 Infection). The investigators randomised patients in Denmark to wearing masks or not wearing masks during the Covid-19 pandemic. Ultimately, 1.8 percent of the masked group developed SARS-Cov-2, while 2.1 percent […]
