People who have recovered from COVID-19 learn to practice the Eight-section Brocade, a traditional Chinese qigong exercise, from a medical worker at the Hubei Provincial Traditional Chinese Medicine Hospital in Wuhan, capital of Hubei, on April 21. Wuhan, the city hit hardest by the coronavirus outbreak in the country, was cleared of all COVID-19 cases in hospital yesterday.      (Story on P3)Xinhua