Article
Bacterial survival, lymph node changes, and immunologic responses of cattle vaccinated with standard and mutant strains of Brucella abortus.
American journal of veterinary research - 1 Oct 1992
Cheville N F, Jensen A E, Halling S M, Tatum F M, Morfitt D C, Hennager S G, Frerichs W M, Schurig G
Abstract excerpt
Forty-eight cattle were used in 4 experiments; 6-week-old calves in experiments 1-3 (n = 24) and 10-month-old heifers in experiment 4 (n = 24). In experiments 1-3, 7 groups of 3 calves each were inoculated SC with 5 strains of Brucella abortus: virulent strain 2308 (2 groups), vaccine strain 19 (2 groups), and mutant strains RB51. 19 delta 31K, and 19 delta SOD. Sera and lymph node tissues were examined at 2-week...
Topics
- Animals
- Antibodies, Bacterial
- Brucella Vaccine
- Brucella abortus
- Brucellosis, Bovine
- Cattle
- Dexamethasone
- Female
- Lymph Nodes
- Mutation