1. 1Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, PR China
2. 2Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, PR China
3. 3Laboratory of Bacterial Genetics, Centre for Epidemiology and Microbiology, National Institute of Public Health, Šrobárova 48, 100 42 Prague 10, Czech Republic
4. 4Department of Laboratory Medicine, Third Faculty of Medicine, Charles University, Šrobárova 50, 100 34 Praha 10, Czech Republic
5. 5Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, PR China