1. College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
2. Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, China
3. OIE Reference Lab for Swine Streptococcosis, Nanjing, China
4. Sanya Institute of Nanjing Agriculture University, Sanya, China
5. Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
6. Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
7. Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
8. China Animal Health and Epidemiology Center, Qingdao, Shandong, China