Beijing started mass testing millions of its residents as part of an unprecedented scheme designed to identify and squash omicron's stealthy spread before it spirals out of control in the Chinese capital.
Nearly 20 million people will undergo three rounds of Covid testing through the weekend as Beijing's municipal government expands the effort that started in the eastern Chaoyang district, where most cases in the recent flareup have emerged. The broader testing will encompass 10 other administrative districts and an economic development zone, which houses the headquarters for the e-commerce giant JD.com Inc. and other high-tech firms.