1. Department of Infectious Disease, Kunming General Hospital of Chengdu Military Command, Kunming, China.
2. Department of Postgraduate, Kunming Medical University, Kunming, China.
3. Laboratory Department, Tibet Military Region General Hospital, Tibet, China.
4. Medical Administration Division, Tibet Military Region General Hospital, Tibet, China.
5. Medical Administration Division, Kunming General Hospital of Chengdu Military Region, Kunming, China.
6. Medical Team, Tibet Military Region 77649 Unit, Tibet, China.
7. State Key Laboratory of Organ Failure Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China.