1. State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, PR China,
2. Department of Basic Medicine, Xiangnan University, Chenzhou, Hunan Province, PR China,
3. Department of Parasitology, Institute of Veterinary Medicine, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province, PR China,
4. Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan,
5. Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, PR China, and
6. Department of Parasitology, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province, PR China