This journal is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Kafkas Üniversitesi Veteriner Fakültesi Dergisi
2022 , Vol 28 , Issue 4
Milk Non-Enzymatic Immunofiltration Assay "mNERIFA": An Alternative Rapid Bovine Milk Test for Anti-Brucella Antibody Detection
1Ondokuz Mayıs University, Faculty of Veterinary Medicine, Department of Microbiology, TR-55139 Samsun - TÜRKİYE2Samsun Veterinary Control Institute, Department of Rabies Diagnostic, TR-55200 Samsun - TÜRKİYE
3Samsun Veterinary Control Institute, Department of Serology, TR-55200 Samsun - TÜRKİYE DOI : 10.9775/kvfd.2021.26927 Rapid milk tests for the indirect diagnosis of brucellosis are limited and generally not preferred due to insufficient diagnostic performances and inappropriate handling process. In this study, a rapid immunofiltration assay known as Non-Enzymatic Immunofiltration Assay (NERIFA) was evaluated based on diagnostic performances and applicability for the detection of anti-Brucella antibodies in bovine milk samples as milk NERIFA (mNERIFA). For this purpose, wheys, that were obtained from rennin precipitated milk constituted with reference sera, were used as test material. Besides, an enzyme-linked immunosorbent assay (ELISA) was also developed for the evaluation of mNERIFA. Aft er approval, the ELISA was evaluated as important (P<0.001) by Receiver Operating Procedures (ROC) analysis based on the diagnostic index (J) score specified as the Youden index (J: 0.963) and the Area Under the Curve (AUC) value (0.996), its results compared with mNERIFA by kappa statistical analysis. ELISA"s comparison with mNERIFA based on diagnostic performances indicated that ELISA"s performance was in perfect agreement with mNERIFA (κ=0.97) and the agreement was 0.97% (0.92-0.99%) with CI 95%. In the optimization process of mNERIFA, it was found that there was no significant diff erence between the individual and pooled whey samples (P>0.05), and a pool of 5 samples can be used instead of individual testing. In this study, it was concluded that mNERIFA may be recommended as a rapid test for anti-Brucella antibody detection in bovine milk samples based on the diagnostic performances, applicability, and pooling capacity. Keywords : Hızlı test, Seroloji, Sığır brusellozisi, Süt NERIFA, Süt testi