1. Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis / College of Veterinary Medicine, Jilin University, Changchun, China.
2. Panjin Inspection and Testing Center, Panjin, China.
3. State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Public Health of the Ministry of Agriculture, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China.
4. Jilin Provincal Center for Animal Disease Control and Prevention, Changchun, China.