Affiliation: | 1. Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington, United States of America.; 2. Animal Disease Research Unit, USDA-Agricultural Research Service, Pullman, Washington, United States of America.; 3. Paul G. Allen School for Global Animal Health, Washington State University, Pullman, Washington, United States of America.; McMaster University, Canada, |