A recovered patient gestures to bid farewell to medical staff at the Chongqing Public Health Center in southwest China's Chongqing, March 15, 2020. The last patient diagnosed with the novel coronavirus disease (COVID-19) has been cured and discharged from the center, bringing the number of COVID-19 patients being treated in hospitals to zero in Chongqing. (Xinhua/Wang Quanchao)
