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  • 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

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  • 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
  • White House sending nine million Covid vaccines to Africa

    01:46
  • Vaccine boosters, travel, holiday parties: Your omicron questions answered

    04:56
  • Can at-home Covid tests detect the omicron variant?

    05:08
  • How the omicron variant could impact holiday travel

    02:55

Covid exposure sidelines 1,000 Cleveland Clinic staff members

03:24

As Ohio reports nearly 12,000 new Covid-19 cases, the situation in the state’s hospitals is getting increasingly worse. Cleveland Clinic confirms it has 1,000 of its caregivers quarantining. NBC News’ Valerie Castro reports on how the clinic is coping with this massive hit to its staff.