Recovered coronavirus patients donate plasma in a blood donation bus at the Beijing You'an Hospital in Beijing, Feb. 27, 2020. (Photo: China News Service/ Cui Nan)
Recovered coronavirus patients donate plasma in a blood donation bus at the Beijing You'an Hospital in Beijing, Feb. 27, 2020. (Photo: China News Service/ Cui Nan)
Recovered coronavirus patients donate plasma in a blood donation bus at the Beijing You'an Hospital in Beijing, Feb. 27, 2020. (Photo: China News Service/ Cui Nan)
Recovered coronavirus patients donate plasma in a blood donation bus at the Beijing You'an Hospital in Beijing, Feb. 27, 2020. (Photo: China News Service/ Cui Nan)