Mr. Tan, a cured coronavirus patient, donates plasma at Affiliated Nanhua Hospital of University of South China in Hengyang City, central China's Hunan Province, March 2, 2020. Two recovered patients donated their plasma after recovery from coronavirus in Hengyang City on Monday. (Photo by Cao Zhengping/Xinhua)
Mr. Tang, a cured coronavirus patient, shows his plasma donation certificate at Affiliated Nanhua Hospital of University of South China in Hengyang City, central China's Hunan Province, March 2, 2020. Two recovered patients donated their plasma after recovery from coronavirus in Hengyang City on Monday. (Photo by Cao Zhengping/Xinhua)
A cured coronavirus patient donates plasma at Affiliated Nanhua Hospital of University of South China in Hengyang City, central China's Hunan Province, March 2, 2020. Two recovered patients donated their plasma after recovery from coronavirus in Hengyang City on Monday. (Photo by Luo Meng/Xinhua)