The Washington PostBoris Johnson says British coronavirus variant may be more deadlyJan 22, 2021more_vert
NBC NewsBoris Johnson warns U.K. variant may be deadlier, but experts say it's too soon to tellJan 22, 2021Erika Edwards, Akshay Syal & Denise ChowBy Erika Edwards, Akshay Syal & Denise Chowmore_vert