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    Dr. Fauci: We don't know the definitive answer on the origins of Covid

    06:17

  • The Truth about the Lab Leak theory 

    25:09

  • Lab leak? The raging debate over how Covid started

    07:21

  • Chris Hayes: What’s really at stake in the Covid origin debate

    06:43

  • Dr. Patel on Covid origins: We’ll likely never come to definitive conclusion

    04:48

  • Biden: 'We've broken the Covid grip on us'

    01:15

  • Marjorie Taylor Greene embarrasses herself with misinformed talking point

    02:24

  • Trump and DeSantis try to out anti-vaxx each other

    06:59

  • Covid conspiracist Marjorie Taylor Greene tapped to investigate pandemic

    07:56

  • McCarthy selects Covid conspiracy theorist for pandemic panel

    11:02

  • Trump record on Covid may be insufficiently delusional for the GOP base

    02:31

  • A prominent medical expert is denying Covid death numbers

    17:55

  • What's driving U.S. drug shortages and how to fix them

    04:39

  • Exiting Biden Covid science officer hails vaccine success

    06:13

  • Is the Biden admin prepared to tackle the latest Covid variant?

    11:36

  • 'A moment for collaboration' What China's COVID surge means for the world

    05:18

  • Dr. Gottlieb: China could have successive waves of infection now

    06:23

  • U.S. to implement Covid rules for travelers from China

    03:24

  • The U.S. tackles growing flu and Covid cases

    06:18

  • Busted: Watch DeSantis take credit for vax before pandering to conspiracy theorists

    03:27

Hallie Jackson

Disease expert: 'Omicron will be the new delta'

05:13

As the omicron variant of the coronavirus is being discovered in multiple U.S. states, Dr. Michael Osterholm of the University of Minnesota’s Center for Infectious Disease Research tells Hallie Jackson he believes it will soon overtake delta as the predominant Covid-19 variant in the world. While Osterholm notes the variant’s high transmission rate, he says we have yet to learn omicron’s potency in terms of serious illness.Dec. 3, 2021

  • UP NEXT

    Dr. Fauci: We don't know the definitive answer on the origins of Covid

    06:17

  • The Truth about the Lab Leak theory 

    25:09

  • Lab leak? The raging debate over how Covid started

    07:21

  • Chris Hayes: What’s really at stake in the Covid origin debate

    06:43

  • Dr. Patel on Covid origins: We’ll likely never come to definitive conclusion

    04:48

  • Biden: 'We've broken the Covid grip on us'

    01:15

MSNBC HIGHLIGHTS

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