Beijing Winter Olympics: China’s Extreme Covid-19 Rules to Stop Omicron
China is enforcing a strict set of Covid-19 rules at the Winter Olympics to stop the fast-spreading Omicron variant. From a "closed-loop” system to a ban on shouting, WSJ explains how some of these restrictions will work, and why despite all efforts, an outbreak could still derail competitions. Photo: Fabrizio Bensch/Reuters