1. State Key Laboratory of Veterinary Etiological Biology, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
2. College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, China
3. Division of General surgery, Qinghai Provincial People’s Hospital, Xining, Qinghai, China
4. Key Laboratory for Zoonoses Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, China