1. State Key Laboratory of Agricultural Microbiology, College of Veterinary Microbiology, Huazhong Agricultural University, Wuhan, China
2. Ministry of Agriculture and Rural Affairs Key Laboratory of Development of Veterinary Diagnostic Products, the Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, China
3. Ministry of Science and Technology International Research Center for Animal Disease, Huazhong Agricultural University, Wuhan, China