1. Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, People’s Republic of China
2. State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
3. Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Center for Disease Control and Prevention, Nanning, People’s Republic of China
4. School of Public Health, Guangxi Medical University, Nanning, People’s Republic of China
5. School of Medicine, Nankai University, Tianjin, People’s Republic of China