1. College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
2. Department of Preventive Veterinary Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China
3. National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
4. Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China
5. Key Laboratory of Zoonoses Control and Prevention of Guangdong, Guangzhou 510642, China