DALIAN, China -- It was 3 a.m. on a freezing January night when Ms. Wu, along with the other residents of her apartment complex in China's northeastern city of Tianjin, was roused by local authorities for an immediate PCR test. Stumbling downstairs and out into the cold, they lined up in the street for about an hour to be swabbed.
Wu, who did not want to reveal her full name, has been tested more than 10 times since Jan. 9, the day after a case of the omicron variant of COVID-19 was detected in her district of the city of Tianjin. Until the outbreak is contained, residents are confined to their apartment complex, only allowed out for PCR tests. A gate has been set up at the entrance to the complex, and municipal officials stand guard to prevent people from leaving.