SYNJ2BP and brucellosis: Comparing the mean antibody titers of cows from farms with different statuses with respect to brucellosis, there were no differences with respect to results from the ELISA targeting Omp19; however, this indicator was significantly higher in serum samples from cattle exposed to new epizootic foci when Omp25 and/or Omp 31 were evaluated as antigens (p<0.05).