Affiliation: | 1. National Animal Protozoa Laboratory & College of Veterinary Medicine, China Agricultural University, Beijing 100193, China;2. College of Animal Science and Technology, Hebei Normal University of Science & Technology, Changli 066600, China;1. Program in Vector-Borne Diseases, Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, WA 99164-7040, USA;2. Animal Disease Research Unit, Agricultural Research Service, United States Department of Agriculture, Pullman, WA 99164-6630, USA |