The Omicron variant has been detected around the world. We are seeing a very sharp increase in case numbers with almost 10 million cases reported in the last 7 days. - Dr Maria Van Kerkhove explains why Omicron is transmitting so efficiently and how to contain the spread of COVID-19. | World Health Organization (WHO)

85K views · 1.6K reactions | TRACKING OMICRON'S SUBVARIANT: Scientists are monitoring an Omicron subvariant, which experts say is “highly contagious” but not more deadly. Steve Osunsami reports as a federal vaccine mandate took effect for about half the nation’s health care workers. https://abcn.ws/3fXNiPR | ABC World News Tonight with David Muir | Facebook