1. WHO WPRO Regional Polio Reference Laboratory, National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
2. Jinan Institute for Food and Drug Control, Jinan, People’s Republic of China
3. Teaching Department of Basic Medicine, Taishan Vocational College of Nursing, Tai’an, People’s Republic of China
4. Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention, Urumqi, People’s Republic of China
5. Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, People’s Republic of China