1. Xinxiang Key Laboratory of Pathogenic Biology, Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, P.R. China.
2. Xinxiang Key Laboratory of Immunoregulationand Molecular Diagnostics, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, P.R. China.
3. MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, P.R. China.