Recovered coronavirus patient Cheng Lin shows the certificate after donating her plasma at Wuhan Jinyintan Hospital in Wuhan, capital of central China's Hubei Province, Feb. 18, 2020. Cheng, a medical worker and wife of president of Wuhan Jinyintan Hospital Zhang Dingyu, donated her plasma on Tuesday. Cheng was infected with the novel coronavirus and was hospitalized on Jan. 19. After medical treatment, she was cured and discharged from the hospital on Jan. 29. (Wuhan Jinyintan Hospital/Handout via Xinhua)
