Posted: September 1, 2021 at 5:25 pm TWG Source Massive randomized study is proof that surgical masks limit coronavirus spread, authors say The pre-print paper, which tracked more than 340,000 adults across 600 villages in rural Bangladesh, is by far the largest randomized study on the effectiveness of masks at limiting the spread of the illness caused by the coronavirus. Via Leave a Reply Cancel replyYou must be logged in to post a comment.
