1. Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
2. School of Animal Husbandry and Medical Engineering, Xinyang Agriculture and Forestry University, Xinyang, China
3. Guangdong Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
4. The First Affiliated Hospital of Harbin Medical University, Harbin, China
5. Shanxi Provincial Animal Disease Control Center, Taiyuan, China