Beijing's most populous district Chaoyang announced three rounds of mass testing to quell a "ferocious" COVID-19 outbreak that emerged at a bar in a nightlife and shopping area last week, shortly after the city relaxed curbs imposed during an outbreak in April.
City health officials said that so far there have been 166 confirmed cases linked to the outbreak that began at the Heaven Supermarket bar in the Sanlitun area on Thursday, 145 of them bar patrons.
