1. Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
2. Department of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, PR China
3. Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, PR China
4. Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, PR China