1. State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, China
2. College of Animal Science, University of Tibet Agricultural and Animal Husbandry, Linzhi, Tibet, China
3. College of Animal Science, Yangtze University, Jingzhou, Hubei, China