Chinese Premier Li Keqiang, also a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee and head of a leading group of the CPC Central Committee on the prevention and control of the novel coronavirus outbreak, disinfects hands before he enters a lab at the Chinese Center for Disease Control and Prevention (CDC) in Beijing, capital of China, on Jan. 30, 2020. Li learned about the scientific research on epidemic prevention and control and listened to opinions of medical experts while inspecting the CDC. (Xinhua/Wang Ye)