1 State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China.
2 Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Provincial Center for Disease Control and Prevention, Jinan, China.
3 State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China.
4 Department of Laboratory Medicine, Quzhou Center for Disease Control and Prevention, Quzhou, China.
5 Department of Laboratory Medicine, The Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, China.
6 Department of Infectious Disease Control and Prevention, Jinan Center for Disease Control and Prevention, Jinan, China.
7 State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China. Electronic address: mjma@163.com.