1. State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
2. Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, PR China
3. Infection Management Office, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, PR China
4. Shenzhen Center for Disease Control and Prevention, Shenzhen 518073, PR China
5. Shanxi Eye Hospital, Taiyuan 030001, PR China
6. Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 100730, PR China
7. Institute of Public Health, Nankai University, Tianjin 300071, PR China