| Authors: |
Briggs RE; USDA, Agricultural Research Service, National Animal Disease Center, Ruminant Diseases and Immunology Research Unit, Ames, IA, USA., Billing SR; USDA, Agricultural Research Service, National Animal Disease Center, Ruminant Diseases and Immunology Research Unit, Ames, IA, USA., Boatwright WD Jr; USDA, Agricultural Research Service, National Animal Disease Center, Ruminant Diseases and Immunology Research Unit, Ames, IA, USA., Chriswell BO; USDA, Agricultural Research Service, National Animal Disease Center, Ruminant Diseases and Immunology Research Unit, Ames, IA, USA., Casas E; USDA, Agricultural Research Service, National Animal Disease Center, Ruminant Diseases and Immunology Research Unit, Ames, IA, USA., Dassanayake RP; USDA, Agricultural Research Service, National Animal Disease Center, Ruminant Diseases and Immunology Research Unit, Ames, IA, USA., Palmer MV; USDA, Agricultural Research Service, National Animal Disease Center, Infectious Bacterial Diseases Research Unit, Ames, IA, USA., Register KB; USDA, Agricultural Research Service, National Animal Disease Center, Ruminant Diseases and Immunology Research Unit, Ames, IA, USA., Tatum FM; USDA, Agricultural Research Service, National Animal Disease Center, Ruminant Diseases and Immunology Research Unit, Ames, IA, USA. Electronic address: fred.tatum@usda.gov. |
