More than 4 million residents in Xi'an, capital of Shaanxi province, underwent nucleic acid testing for COVID-19 on Thursday after a third round of testing began at 8 am.
More than 4 million residents in Xi'an, capital of Shaanxi province, underwent nucleic acid testing for COVID-19 on Thursday after a third round of testing began at 8 am.
More than 4 million residents in Xi'an, capital of Shaanxi province, underwent nucleic acid testing for COVID-19 on Thursday after a third round of testing began at 8 am.
More than 4 million residents in Xi'an, capital of Shaanxi province, underwent nucleic acid testing for COVID-19 on Thursday after a third round of testing began at 8 am.