Residents have their information registered before COVID-19 nucleic acid testing in Zhangjiajie, central China's Hunan Province, Aug. 4, 2021. Between July 29 and Aug. 9, a total of 53 locally transmitted confirmed cases have been reported in Zhangjiajie. The city now has three high-risk areas and 11 medium-risk areas for COVID-19. (Xinhua/Chen Sihan)
