1. Department of Medical Microbiology, Weifang Medical University, Weifang, People’s Republic of China
2. WHO WPRO Regional Polio Reference Laboratory, National Health Commission Key Laboratory for Biosafety, National Health Commission Key Laboratory for Medical Virology, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
3. Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China