1. Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin—Madison, Madison, Wisconsin
2. National Veterinary Services Laboratories, United States Department of Agriculture, Ames, Iowa
3. Rollins Animal Disease Diagnostic Laboratory, Raleigh, North Carolina
4. Department of Veterinary Diagnostic Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
5. Animal Disease Diagnostic Laboratory, School of Veterinary Medicine, Purdue University, West Lafayette, Indiana
6. Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana—Champaign, Champaign, Illinois
7. ImmTech Biologics, LLC, Bucyrus, Kansas