1. U.S. Food and Drug Administration, Center for Veterinary Medicine, Laurel, Maryland.
2. Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases, Atlanta, Georgia.
3. U.S. Department of Agriculture, Agricultural Research Service, Athens, Georgia.
4. U.S. Department of Agriculture, Food Safety and Inspection Service, Washington, District of Columbia.
5. U.S. Department of Agriculture, Food Safety and Inspection Service, Athens, Georgia.
6. Joint Institute for Food Safety and Applied Nutrition, College Park, Maryland.
7. U.S. Food and Drug Administration, Center for Veterinary Medicine, Rockville, Maryland.