1. Institute of Comparative Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
2. College of Veterinary Medicine, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China
3. Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, 12 Wenhui East Road, Yangzhou, Jiangsu Province 225009, P.R.China