1) On the leber-agar under increased CO2 - tention, gram nekative coccobacilli were isolated from the blood of a patient, who was suffered from the undulated feber. The morphology of the organism was typical of Brucella and this organism produced a slight amount of H2S for seventy hours. 2) On the agglutination absorption test, it has been suspected that he was infected by Brucella abortus. 3) But it has been recently diagnosed that he was infected by Hodgkin's disease according to the fact that aureomysin which is effectiv in the treatment of brucellocis could not drive off the feber, but nitrogen mustard which is a specific medicine for Hodgkin's disease could suppress the feber. 4) There was a flock of goats, which was suspected as infectious source. Some of them were clinical abnormal and had ever aborted. The serum of goats agglutinated Brucella melitensis antigen to a 1:80 serum dilution, but Brucella abortus antigen to a 1: 320 serum dilution. Now we are going to isolate Brucella abortus from the milk of the goats by using guinea-pig.
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