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  • Title: The serological diagnosis of bovine brucellosis: an evaluation of the complement fixation, serum agglutination and rose bengal tests.
    Author: Alton GG, Maw J, Rogerson BA, McPherson GG.
    Journal: Aust Vet J; 1975 Feb; 51(2):57-63. PubMed ID: 809027.
    Abstract:
    In a collaborative investigation in which 4 laboratories took part, the Rose Bengal Test (RBT), Serum Agglutination Test (SAT) and 4 different Complement Fixation (CFT) techniques were evaluated in selected cattle for the diagnosis of bovine brucellosis, by comparing the results they gave with the bacteriological examination of a selection of lymph nodes taken from the same animals at slaughter. The RBT correctly classified all but 1 of 79 culture-positive cattle, but was more often positive in culture-negative animals than the other tests. The RBT may be most useful as a screen test. 11% of the culture-positive cattle had SAT titres below 100 iu and almost 4% of them had less than 30 iu. However, the SAT was more effective in cattle vaccinated with the 45/20 vaccine. The CFT, in 1 of 4 techniques used, identified all of the culture-positive cattle at a serum dilution of 1/4 or above and was considered to be far superior to the SAT as a diagnostic test, except perhaps in cattle vaccinated with the 45/20 vaccine.
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