1. Hebei Key Laboratory of Analysis and Control of Zoonotic Pathogenic Microorganism, Hebei Wild Animal Health Center, College of Life Sciences, Hebei Agricultural University , Baoding, China
2. Baoding City Science and Technology Bureau , Baoding, China
3. Tongzhou District Center For Animal Disease Control and Prevention , Beijing, China
4. Department of Biochemistry and Biophysics, University of California , San Francisco, California, USA