COVID-19: What are the concerns about the omicron variant?

Andrew Chang talks to virologist Dr. Samira Mubareka about what has prompted the concerns around the omicron variant and the reports that it spreads easily. 00:00 What we know about omicron symptoms 00:50 How infectious is the omicron variant? 01:19 Should people do anything differently? 02:09 The urgency around booster shots 02:43 Could we see a specific booster shot for omicron? #omicron #covid19 #covidvariant Watch The National live on YouTube Sunday-Friday at 9 p.m. ET Subscribe to The National: https://www.youtube.com/user/CBCTheNa... Connect with The National online: Facebook |   / thenational   Twitter |   / cbcthenational   Instagram |   / cbcthenational   More from CBC News | https://www.cbc.ca/news The National is CBC's flagship nightly news program, featuring the day's top stories with in-depth and original journalism, with hosts Adrienne Arsenault and Andrew Chang in Toronto, Ian Hanomansing in Vancouver and the CBC's chief political correspondent, Rosemary Barton in Ottawa.