1. National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, TEDA Institute of Biological Sciences and Biotechnology, Nankai University , Tianjin , People's Republic of China
2. Key Laboratory of Molecular Microbiology and Technology, Ministry of Education , Tianjin , People's Republic of China
3. Department of Microbiology, College of Life Sciences, Nankai University , Tianjin , People's Republic of China
4. Nankai International Advanced Research Institute , Shenzhen , People's Republic of China