Health Experts Track U.S. Spread Of Covid Omicron Subvariant

At least 22 states have detected a Covid-19 omicron subvariant, but health experts say it is not yet clear how dangerous it could be. Professor of Anesthesiology and Critical Care Medicine, Dr. Ebony Jade Hilton, joins News NOW to explain how the omicron subvariant differs from the original strain and whether the U.S. should be concerned about its spread. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: https://smart.link/5d0cd9df61b80 Breaking News Alerts: https://link.nbcnews.com/join/5cj/breaking-news-signup?cid=sm_npd_nn_yt_bn-clip_190621 Visit NBCNews.Com: http://nbcnews.to/ReadNBC Find NBC News on Facebook: http://nbcnews.to/LikeNBC Follow NBC News on Twitter: http://nbcnews.to/FollowNBC #Omicron #Coronavirus #Covid

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