Medical workers work at the hemodialysis center of the nephrology department in Hankou Hospital of Wuhan, capital of central China's Hubei Province, March 21, 2020. Medics at the hemodialysis center of the nephrology department of Hankou Hospital have been sticking to their posts during the novel coronavirus epidemic outbreak. In addition to carrying out blood purification treatment for COVID-19 patients in critical conditions, they also conduct hemodialysis treatment for some 40 uremic patients recovering from COVID-19 infection every week. (Xinhua/Chen Yehua)