1. U.S. Food and Drug Administration, Center for Veterinary Medicine, Office of Research, Laurel, Maryland, USA
2. U.S. Food and Drug Administration, Center for Veterinary Medicine, Office of New Animal Drug Evaluation, Rockville, Maryland, USA
3. U.S. Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, Maryland, USA
4. California Animal Health and Food Safety Laboratory, University of California, Davis, Davis, California, USA
5. School of Veterinary Medicine, University of California, Davis, Davis, California, USA
6. College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
7. College of Veterinary Medicine, Department of Infectious Disease, Athens Veterinary Diagnostic Laboratory, The University of Georgia, Athens, Georgia, USA
8. Veterinary Diagnostic and Investigational Laboratory, College of Veterinary Medicine, The University of Georgia, Tifton, Georgia, USA
9. College of Veterinary Medicine, Veterinary Diagnostic Laboratory, Iowa State University, Ames, Iowa, USA
10. College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
11. Ohio Animal Disease Diagnostic Laboratory, Ohio Department of Agriculture, Reynoldsburg, Ohio, USA
12. U.S. Department of Agriculture, National Veterinary Services Laboratories, Ames, Iowa, USA
13. University of Pennsylvania, Matthew J. Ryan Veterinary Hospital, Philadelphia, Pennsylvania, USA
14. Veterinary and Biomedical Sciences Department, Animal Disease Research and Diagnostic Laboratory, South Dakota State University, Brookings, South Dakota, USA
15. College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA
16. Washington Animal Disease Diagnostic Laboratory, College of Veterinary Medicine, Washington State University, Pullman, Washington, USA
17. Department of Pathobiological Sciences/WVDL, University of Wisconsin–Madison, Madison, Wisconsin, USA