1. Key Laboratory of Medical Virology and Viral Diseases, Ministry of Health of the People’s Republic of China, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, PR China
2. The First Clinical Medical College of Lanzhou University, Lanzhou, PR China
3. Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong Province, PR China
4. Jiangsu Provincial Center for Disease Control and Prevention, Jiangsu Province, PR China
5. Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong Province, PR China
6. Beijing Shunyi Center for Disease Control and Prevention, Shunyi District, Beijing, PR China
7. Guangzhou Huadu Center for Disease Control and Prevention, Huadu District, Guangzhou, Guangdong Province, PR China
8. Guangzhou Yuexiu Center for Disease Control and Prevention, Yuexiu District, Guangzhou, Guangdong Province, PR China
9. Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing, PR China
10. Divisions of Infectious Diseases, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
11. Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA