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  • Title: Comparative evaluation of two commercial ELISA kits for detection of antibodies against Akabane virus in cattle serum.
    Author: Li X, Jing H, Liu X, Wang Q, Qiu S, Liu D, Wu S, Lin X.
    Journal: BMC Vet Res; 2019 Nov 11; 15(1):408. PubMed ID: 31711494.
    Abstract:
    BACKGROUND: Akabane disease (AD), a barrier to international trade for endemic areas with far economic impact on the countries, is caused by Akabane virus (AKAV). Commercial enzyme-linked immunosorbent assay (ELISA) is a commonly used diagnostic technique for AKAV infection, including the IDEXX and IDVET ELISA kits. However, the comparative evaluation of the IDEXX and IDVET ELISA kits has not been published. The object of this study was to evaluate the test performance of the two commercial ELISA kits in detecting serum anti-AKAV antibodies in cattle. RESULTS: With virus neutralization test (VNT) as the "relative gold standard", the diagnostic sensitivity (DSe) was 80.39% (123/153) and 93.46% (143/153) for the IDEXX and IDVET ELISA kit, when suspect samples were included. The diagnostic specificity (DSp) for the IDEXX and IDVET ELISA kit was 93.48% (502/537) and 82.31% (442/537), respectively. CONCLUSION: Both of the tested ELISA kits could be applied to detect antibodies against AKAV in cattle serum. The IDVET ELISA kit had a higher DSe. The IDEXX ELISA kit possessed the higher DSp. These results have important implications if the kits are used to screen herds or individual cattle in surveillance programs, or at border crossings for import-export inspection and quarantine.
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