Medical staff from Xiangya Hospital of Central South University wave goodbye before departure in Zhangjiajie, central China's Hunan Province, Aug. 25, 2021. Zhangjiajie, a renowned tourist city in central China's Hunan Province, lifted traffic restrictions starting at 8 a.m. Wednesday. Medical assistance teams started leaving the city as the recent resurgence of COVID-19 has been subdued. (Xinhua/Chen Sihan)
