Chinese Vice Premier Sun Chunlan, also a member of the Political Bureau of the Communist Party of China Central Committee, learns about epidemic control work at the Hongshan Square public transit hub in Wuhan, central China's Hubei Province, April 14, 2020. Sun, who is leading a central government group to guide the COVID-19 epidemic control work in Hubei, on Tuesday inspected on-site epidemiological investigation and COVID-19 containment work at communities, mass transit hubs and farm produce markets in the hardest-hit city by the coronavirus. [Photo/Xinhua]