A medical worker collects a swab sample from a resident for nucleic acid testing at a hospital in Feixi County of east China' Anhui Province, May 15, 2021. As of 5:30 a.m. (Beijing Time) Saturday, a total of 113,149 people who were given nucleic acid tests in Feixi County tested negative for COVID-19. (Xinhua/Huang Bohan)
