1. Department of Veterinary Pathobiology College of Veterinary Medicine Oklahoma State University Stillwater Oklahoma USA
2. Setor de Virologia Universidade Federal de Santa Maria Santa Maria Brazil
3. Laboratório de Virologia Faculdade de Veterinária Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
4. Department of Entomology & Plant Pathology Ferguson College of Agriculture Oklahoma State University Stillwater Oklahoma USA
5. G.A. Flory Consulting Mt. Crawford Virginia USA
6. Virginia Department of Environmental Quality Harrisonburg Virginia USA
7. Envirotech Engineering & Consulting, Inc. Oklahoma City Oklahoma USA
8. Oklahoma Department of Agriculture, Food and Forestry Oklahoma City Oklahoma USA
9. Center for Epidemiology and Animal Health, Veterinary Services U.S. Department of Agriculture Animal and Plant Health Inspection Services Fort Collins Colorado USA
10. Molecular Diagnostic Laboratory Oklahoma Animal Disease Diagnostic Laboratory Oklahoma State University Stillwater Oklahoma USA
11. United States Department of Agriculture Animal and Plant Health Inspection Service Veterinary Services Field Operations Oklahoma City Oklahoma USA
12. U.S. Department of Agriculture Animal and Plant Health Inspection Services Fort Collins Colorado USA
13. United States Department of Agriculture Animal and Plant Health Inspection Service Veterinary Services Strategy and Policy Riverdale Maryland USA
14. Charles River Laboratories Mattawan Michigan USA