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What we know and don’t know about the omicron variant

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As the world waits to learn more about the latest coronavirus variant, omicron, NBC senior national correspondent Tom Llamas joins to TODAY to run down just what is known about it so far, including how transmissible it is and how effective vaccines are against it.

Appearing:Savannah GutherieHoda Kotb
Tags: al roker, entertainment, food, hoda kotb, International News, money, Natalie Morales, Savannah Gutherie, sports, style, today, Today Show, Breaking News, Concerts, domestic news, health, Home, Interviews, Media, Parents, pets, politics, shopping, weather
S0 E02 minNRExcerptNews and InformationDaytime


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