1. Tuberculosis Research Project
2. National Tuberculosis Eradication Program; Veterinary Services
3. National Wildlife Research Center; Animal and Plant Health Inspection Service (APHIS), USDA; Fort Collins CO 80521 USA
4. Ottawa Laboratory Fallowfield; Canadian Food Inspection Agency; Ottawa Ontario K2H 8P9 Canada
5. Brucellosis Research Project
6. Periparturient Diseases of Cattle Research Project; National Animal Disease Center; Agricultural Research Service; United States Department of Agriculture (USDA); Ames Iowa 50010 USA