1. Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, PR China
2. Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, PR China
3. Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, PR China
4. Department of Infection Control, West China Hospital, Sichuan University, Chengdu, PR China
5. Laboratoryof Clinical Microbiology, Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, PR China