There have never been scrapie, bovine spongiform encephalopathy, African horse sickness, African swine fever, vesicular stomatitis, lumpy skin disease, Rift Valley fever and peste-des-petits ruminants in china. 中国境内从未发生过痒病、牛海绵状脑病、非洲马瘟、非洲猪瘟、水泡性口炎、结节性皮炎、裂谷热和小反刍兽疫。