1. Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
2. Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming, People’s Republic of China
3. Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People’s Republic of China
4. Clinical Immunology Center, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
5. Tsinghua University Medical College, Beijing, People’s Republic of China