In this photo released by China's Xinhua News Agency, temporary laboratories for nucleic acid testing are seen in a sports stadium in Nanjing in eastern China's Jiangsu Province, Tuesday, July 27, 2021. Drivers seeking to leave eastern China's Jiangsu province will have to show a negative COVID-19 test taken in the last 48 hours or be forced to turn around, as cases in the province continue to rise. (Photo by Li Bo/Xinhua via AP Photo)
