1. Center for Disease Control and Prevention of PLA, Beijing, China.
2. Xingcheng Special Service Recuperation Center of PLA Strategic Support Force, Xingcheng, China.
3. Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China.
4. 73 Army Hospital, Xiamen, China.
5. Center for Disease Control and Prevention in Northern Theater Command of PLA, Shenyang, China.
6. State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China.