A medical worker helps a citizen to register personal information for nucleic acid testing in Hohhot, north China's Inner Mongolia Autonomous Region, Oct. 29, 2021. Hohhot launched a second round of nucleic acid testing on Friday. (Xinhua/Peng Yuan)
A medical worker takes a swab sample from a resident for nucleic acid testing in Hohhot, north China's Inner Mongolia Autonomous Region, Oct. 29, 2021. Hohhot launched a second round of nucleic acid testing on Friday. (Xinhua/Peng Yuan)
A medical worker takes a swab sample from a resident for nucleic acid testing in Hohhot, north China's Inner Mongolia Autonomous Region, Oct. 29, 2021. Hohhot launched a second round of nucleic acid testing on Friday. (Xinhua/Peng Yuan)
People wait to take tests at a nucleic acid testing site in Hohhot, north China's Inner Mongolia Autonomous Region, Oct. 29, 2021. Hohhot launched a second round of nucleic acid testing on Friday. (Xinhua/Peng Yuan)
A medical worker takes a swab sample from a resident for nucleic acid testing in Hohhot, north China's Inner Mongolia Autonomous Region, Oct. 29, 2021. Hohhot launched a second round of nucleic acid testing on Friday. (Xinhua/Peng Yuan)
A medical worker takes a swab sample from a resident for nucleic acid testing in Hohhot, north China's Inner Mongolia Autonomous Region, Oct. 29, 2021. Hohhot launched a second round of nucleic acid testing on Friday. (Xinhua/Peng Yuan)