Animals 6 Brucella 6 Brucella Vaccine 6 Brucella abortus 6 Brucella vaccine Brucellosis 6 Multienzyme Complexes 6 article 6 brucellosis 6 Adjuvants, Immunologic 4 Antibodies, Bacterial 4 Female 4 Freund adjuvant 4 Lymphocyte Activation 4 Mice 4 Mice, Inbred BALB C 4 Th1 Cells 4 Th1 cell 4 Th2 Cells 4 Th2 cell 4 Vaccines, Synthetic 4 aluminum hydroxide 4 animal experiment 4 animal model 4 controlled study 4 cytokine production 4 drug effect 4 drug formulation 4 female 4 gamma interferon 4