Why South Africa Sounded the Alarm Over Omicron

The Journal. - A podcast by The Wall Street Journal & Gimlet

On Friday, the World Health Organization labeled a new variant of the coronavirus, called Omicron, as a variant of concern. WSJ's Gabriele Steinhauser explains how scientists in South Africa noticed it so quickly, and what's known about Omicron so far. Learn more about your ad choices. Visit megaphone.fm/adchoices