Affiliation: | 1. William R. Pritchard Veterinary Medical Teaching Hospital, University of California, Davis, CA;2. Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA;3. Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA;4. Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA |