1. Jiangsu Provincial Center for Disease Control & Prevention, Jiangsu, 210009, China
2. NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Medical Key Laboratory of Pathogenic Microbiology in Emerging Major Infectious Diseases, Jiangsu, 210009, China
3. Jiangsu Province Engineering Research Center of Health Emergency, Jiangsu, 210009, China