1. State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (China CDC), Beijing 102206, PR China
2. Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, PR China
3. Center for Human Pathogen Collection, China CDC, Beijing 102206, PR China
4. Center for Disease Control and Prevention of Fujian Province, Fuzhou 350001, PR China