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  • Pfizer CEO: New data about effectiveness of booster against omicron is ‘very good news’

    05:12
  • Pfizer releases new data about effectiveness of its booster against omicron

    01:53
  • Omicron infections now identified in over a third of the U.S.

    03:02
  • Demand for Covid vaccine increases as omicron variant spreads across U.S. 

    03:47
  • Violent clashes erupt in Europe amid renewed Covid restrictions

    01:49
  • As omicron spreads across US, officials balance new safety protocols

    02:20
  • Coronavirus: HHS national disaster medical team assisting overwhelmed New Mexico hospital

    02:50
  • Vaccine experts debate strategy of using current boosters against omicron

    02:55
  • Covid vaccine developer warns next pandemic could be worse

    00:56
  • New Covid testing rules come into effect for overseas travelers entering U.S.

    04:29
  • Omicron variant now reported in at least 16 states

    02:39
  • U.S. travel restrictions to go into effect as Omicron variant spreads

    02:11
  • Omicron variant is forcing Biden to put focus on COVID-19, Chuck Todd says

    02:09
  • Biden announces plans to combat omicron variant

    01:34
  • Omicron cases turn up in more states as international travel restrictions begin

    02:10
  • Amid omicron, should holiday gatherings and return-to-office plans change?

    04:11
  • Omicron variant has spread to at least 11 states

    02:07
  • CDC says Omicron could become dominant variant

    05:00
  • Delta vs. omicron: CDC director discusses coronavirus variants

    01:53
  • Omicron variant detected in several states across U.S.

    02:14

Bernie Sanders on the coronavirus response: ‘Act in an unprecedented way’

06:00

Sen. Sanders tells Chris Hayes, “Our job is to act in an unprecedented way, both in terms of healthcare and the economy.”