The Centers for Disease Control and Prevention says loosely woven cloth masks are “least protective” against COVID-19 and that high-risk people might want to opt for an N95 mask. WATCH THE FULL EPISODE OF 'WORLD NEWS TONIGHT': https://bit.ly/3uHCDO5 WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: http://abc.go.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bit.ly/3iQLwPp #mask #covid #n95 #cdc #wnt