Affiliation: | 1.Key Laboratory of Animal virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agriculture Sciences, No. 1 Xujiaping,State Key Laboratory of Veterinary Etiological Biology,Lanzhou,PR China;2.Chinese Academy of Agriculture Sciences, No. 1 Xujiaping,Lanzhou Veterinary Research Institute,Lanzhou,PR China |