The new omicron subvariant, BA-2, is at least 30% more transmissible and accounts for a quarter of all new cases. Dr. Anthony Fauci said the subvariant could become more dominant in the coming weeks. 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 #WorldNewsTonight #Covid19 #Subvariant