China's Shenyang expands nucleic acid testing to stem new COVID-19 cases (3)

A medical worker collects sample from a citizen for nucleic acid testing at a testing site in Heping District, Shenyang, northeast China's Liaoning Province, May 19, 2021. Shenyang, capital of northeast China's Liaoning Province, has expanded the scope of nucleic acid testing following new cases of COVID-19, said local health authorities. On Tuesday afternoon, Shenyang launched nucleic acid testing for residents of more areas in the four districts where a total of four locally transmitted COVID-19 cases had been reported so far. The testing is expected to be completed on Thursday, according to the authorities. (Xinhua/Yang Qing)