1. Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Sanya, China
2. College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
3. OIE Reference Lab for Swine Streptococcosis, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
4. Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
5. Key Laboratory of Animal Bacteriology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
6. Hainan Animal Disease Prevention and Control Center, Haikou, China