A woman wears a face mask in midtown Manhattan in New York on July 29. (Kena Betancur/AFP/Getty Images)By Christopher FedericoContributor, Monkey Cage July 30, 2021 at 1:00 p.m. EDTBy Christopher FedericoContributor, Monkey Cage July 30, 2021 at 1:00 p.m. EDTShareComment0Amid the spread of the covid delta variant, federal health officials recommend a resumption of mask-wearing in certain circumstances.Professors: Check out TMC’s expanding list of classroom topic guides. Support our journalism. Subscribe today ArrowRightDon’t miss any of TMC’s smart analysis! Sign up here for our newsletter.Comment0 CommentsGiftOutlineGift ArticleToday's HeadlinesThe most important news stories of the day, curated by Post editors and delivered every morning.