1. Department of Veterinary Medicine, Zhejiang University College of Animal Sciences, Hangzhou, China
2. Hainan Institute of Zhejiang University, Sanya, China
3. Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou, China
4. Institute for Veterinary Food Science, Faculty of Veterinary Medicine, Justus Liebig University Giessen, Giessen, Germany
5. Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
6. State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China