A police officer guards the MGM Cotai casino resort in Macao on Sunday as the casino has been placed under lockdown due to Covid-19. A new round of mass testing kicked off in Macao on Tuesday. Photo: Eduardo Leal/VCG

A disease control worker asks residents to open the door to take nucleic acid tests in Hohhot, North China’s Inner Mongolia autonomous region, on Saturday. The city reported 151 local cases on Monday. Photo: VCG

Disease control personnel transfer nucleic acid testing samples in Fuzhou, East China’s Fujian province. The city added 23 Covid-19 high-risk areas and 16 Covid-19 medium-risk areas on Tuesday as more than 700 local cases were reported there since Oct. 22. Photo: VCG

Disease control personnel spray disinfectant on a subway train at the Disney Resort station in Shanghai on Monday. Shanghai Disney Resort closed that day to cope with Covid-19 containment measures. Photo: VCG

Security guards form a barrier inside Shanghai Disney Resort. Trapped visitors were only allowed to leave after getting a negative Covid-19 test result. All Visitors eventually left the park around 10:30 p.m. on Monday. In total, the local government tested 439,000 people linked to the resort shutdown. Photo: VCG

A courier delivers meals to residents in lockdown on Monday in Guangzhou, South China’s Guangdong province. Local infections reached 1,336 from Friday to Monday. Photo: VCG

Foxconn employees wait to board buses to return to their hometowns on Sunday. They fled the company’s main factory in Zhengzhou over fears of an outbreak within the facility. Photo: VCG

A mobile Covid-19 testing unit in Zhengzhou on Monday. The city started to lift its restrictive measures for Covid-19 on Tuesday. Photo: VCG