Home Videos Pfizer Says Covid Vaccine Nearly 91 Percent Effective In Kids Ages 5 to 11 Pfizer Says Covid Vaccine Nearly 91 Percent Effective In Kids Ages 5 to 11 Oct 22, 2021 comments off Tweet on Twitter Share on Facebook Pinterest breaking news evening news health International News Lester Holt Making A Difference National News NBC Nightly News news Nightly News politics U.S. News world news