A medical worker from Beijing Anzhen Hospital demonstrates how to put on and take off protective clothing for preparations to join the fight against the novel coronavirus epidemic at a base for medical workers in Wuhan, capital of central China's Hubei Province, Jan. 29, 2020. A team of 136 medical workers from 12 hospitals run by the Beijing municipal health commission flew to Wuhan on Monday, to join the fight against the coronavirus epidemic. (Xinhua/Cai Yang)