[Evaluation of the agglutination test (AT), complement fixation test (CFT) and the antiglobulin test (AGT) in the diagnosis of swine brucellosis. III. Basic studies].

In the examinations of the swine sera obtained from swines immunized s.c. with adjuvant Br.abortus S19 vaccine or Br.suis 1417 vaccine, it was found that agglutinins were present after 3 weeks, and C.F. antibodies or incomplete agglutinins normally after injections. Probably, in the first period of Brucella infection negative results of C.F.T. or AGT or both will be obtained. In the swine sera from Brucella free herds, agglutinins reacting with the Brucellognost antigen were present. The performance of mercaptoethanol test or C.F.T. lead in most cases to suitable diagnosis. In our conditions we have not obtained results which permit to classify AGT as a supplement test in serodiagnosis of swine brucellosis.