Abstract
The goal of the current research was to evaluate antigen and antibody reaction’s method in comparison with real time PCR for detection of brucella agent in sheep and goat. Therefore, seven hundreds and twenty-eight blood and milk samples were isolated from sheep and goats apparently healthy and suspected brucellosis brought to the Veterinary Clinical Complex from areas in and around Al Bayda, Libya. Blood samples were subjected to serological tests including Rose Bengal Plate Technique (RBPT), Enzyme-linked immunosorbent test (ELISA) for detection of IgA, IgM and also milk ring test to detect the antibodies of brucella agent. Also, the samples subjected by Real Time PCR to determine the presence of bcsp31 gene (Brucella gen). Out of the total examined samples (133) 18.26%, (139) 19.09%, (3) 0.41% and (126) 17.3% were tested positive by RBPT, ELISA IgG, IgM and Real Time PCR respectively. specificity and Sensitivity of RBPT compared with real- time PCR were 98.9% and 79.59% respectively. While, sensitivity and specificity of ELISA for IgG with Real Time PCR were 79.59% and 100% respectively, while, for ELISA IgM were 6.12% and 100% respectively. In conclusion, we suggest using Real Time PCR as a supplementary test in the diagnosis of brucella disease and as a confirmatory test in suspicious cases.
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