1 Institute of Microbiology of the Chinese Academy of Sciences, Beijing 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China.
2 Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China.
3 School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China.
4 Clinical Trial Research Center, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China.
7 Institute of Microbiology of the Chinese Academy of Sciences, Beijing 100101, China.
8 Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China.
9 Institute of Microbiology of the Chinese Academy of Sciences, Beijing 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China. Electronic address: gaof@im.ac.cn.