1. College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang, China.
2. Animal Health and Diagnostic Center of CP Group, Heilongjiang, China.
3. Laboratory of Zoonoses, China Animal Health and Epidemiology Center, Qingdao, China.
4. Emergency Centre for the Control of Transboundary Animal Diseases, Food and Agriculture Organization of the United Nations (FAO), Beijing, China.