作者机构:[1]Department of Veterinary Pathology, College of Animal Sciences, Henan Institute of Science and Technology, Xinxiang 453003, P.R. China, [2]Department of Microbiology and Immunology, Northwestern University, Feinberg Medical School, 303 E. Chicago Ave, Chicago IL 60611, USA, [3]Department of Veterinary Pathology, School of Veterinary Medicine and.Animal Science, Kitasato University, Towada. .Aomori 034-8628, Japan
相关基金:This work was Supported by the National Natural Science Foundation of China (30771601).