1. Biodynamic Optical Imaging Center, Peking University, Beijing 100871, China.
2. Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA.
3. State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing 100071, China.
4. Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060, USA.
5. Beijing Computational Science Research Center, Beijing 100084, China.