1. State Key Laboratory of Agricultural Microbiology; Huazhong Agricultural University; Wuhan Hubei China
2. College of Life Science and Technology; Huazhong Agricultural University; Wuhan Hubei China
3. Laboratory of Animal Virology; College of Veterinary Medicine; Huazhong Agricultural University; Wuhan Hubei China
4. Key Laboratory of Development of Veterinary Diagnostic Products; Ministry of Agriculture; Wuhan China