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  • Title: [Diagnostic value of the rose bengal plate test in the diagnosis of bovine brucellosis].
    Author: Stryszak A.
    Journal: Pol Arch Weter; 1986; 26(1-2):23-38. PubMed ID: 3111518.
    Abstract:
    The value of rose bengal plate test (RBPT) in diagnosing brucellosis in cattle was determined by statistical comparison of its results with the results of the tests used in Poland, i.e. SAT, CFT, AGT and MET. RBPT was made in 2 variants. In routine, highly specific test, equal parts of antigen and serum--0.03 cm3, were used whereas in the experimental one the sensitivity was increased using half the amount of antigen--0.015 cm3 (RBPT0.015). Two batches of cattle serum were examined. In group I 249 cattle serums from the herds infected with brucellosis were examined. In group 2 there were 1269 cattle serums from the herds free of brucellosis, positive in SAT but negative in CFT. The reactions in SAT were considered as not specific if the reaction in the additional examination in CFT, AGT and MET was negative. On the basis of the results in group I, mainly the sensitivity of RBPT was determined compared with the total evaluation of the results of SAT/CFT. In RBPT0.015 the consistency of the results was 99.4% but in RBPT0.03 only 87.9%. Detectability of reactions, i.e. the percentage of positive results in infected herds was calculated. The results were as follows: AGT--89.6%, RBPT0.015--74.3%, SAT/CFT--66.3%, CFT--65.9%, RBPT0.03--59.8%, SAT--55.4%. In the group 2 mainly specificity of RBPT in relation to CFT, AGT and MET was determined. In RBPT0.03 it achieved 97.1% whereas in RBPT0.015--83.1%. The application of RBPT0.03 in the group 2 eliminated 95.8% of the not specific reactions in SAT and that of RBPT0.015--77.9%, respectively. The author suggests to use RBPT0.03 as a screening method instead of SAT and CFT to diagnose cattle brucellosis in the areas free from the disease. On the other hand, RBPT0.015, as more sensitive test is suggested to be used in the herds suspected of brucellosis to identify quickly infected animals.
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