1. Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education Beijing Advanced Innovation Centre for Biomedical Engineering School of Engineering Medicine and School of Biological Science and Medical Engineering Beihang University Beijing 100083 P. R. China
2. State Key Laboratory of Pathogen and Biosecurity Beijing Institute of Microbiology and Epidemiology Academy of Military Medical Sciences Beijing 100071 P. R. China
3. Institute of Military Veterinary Academy of Military Medical Sciences 666 West Liuying Road Changchun Jilin 130122 P. R. China