1. Departments of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO (Wormhoudt, Séguin)
2. Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO (Hyatt)
3. Department of Biomedical and Diagnostic Sciences, The University of Tennessee, Knoxville, TN (Bemis)