title: An enzyme-linked immunosorbent assay (ELISA) for measurement of antibodies against equine herpesvirus 2 in equine sera.
abstract: An indirect enzyme-linked immunosorbent assay (ELISA) was developed for the detection of antibodies against equine herpesvirus type 2 (EHV-2) in equine sera. The optimal conditions of antigen concentration, and serum and conjugate dilutions were established by chequerboard titrations. When the standard ELISA test was used for titration of test sera, it was found to give titres approximately 1500 times higher than those obtained in the virus neutralization (VN) test, and a correlation coefficient of 0.815 was obtained between these two tests on 42 equine sera. All the positive serum samples by the VN were also positive by the ELISA, and one negative serum in the former test was found to be positive in the latter. Under field conditions, the test also detected increases in antibody titres against EHV-2 in 13 out of 14 foals soon after these animals excreted the virus.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis*; D000956:Antigens, Viral / Q000276:immunology; D004797:Enzyme-Linked Immunosorbent Assay; D006564:Herpesviridae / Q000276:immunology*; D006566:Herpesviridae Infections / Q000175:diagnosis / Q000662:veterinary*; D006734:Horse Diseases / Q000175:diagnosis*; D006736:Horses; D009500:Neutralization Tests; D011237:Predictive Value of Tests
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral