PMID: 15379438Sep 24, 2004Paper

Development of a neutralizing monoclonal antibody-based blocking ELISA for detection of equine herpesvirus 1 antibodies

Veterinary Research Communications
B K SinghB R Gulati

Abstract

A single-dilution, sensitive and specific monoclonal antibody-based blocking enzyme-linked immunosorbent assay (B-ELISA) was developed as an alternative to the cumbersome virus neutralization test (VNT) for detection of equine herpesvirus-1 (EHV-1) antibodies. Neutralizing monoclonal antibodies (1H6 and 9C6) raised against EHV-1 (Hisar-90-7 strain) and sera from 70 horses (30 known negative and 40 known positive for EHV-1 antibodies by VNT) were used for standardization of the B-ELISA. Using a single serum dilution of 1:250 in B-ELISA, 100% specificity was obtained with both monoclonal antibodies (Mabs) in comparison to VNT. Similarly, the sensitivity of the B-ELISA was 92.5% and 100% with 1H6 and 9C6 Mabs, respectively. A very high correlation coefficient (r = 0.85) was observed between B-ELISA and VNT that was significant at the p < 0.01 level. B-ELISA detected a more than 3-fold rise in antibody titres in paired serum samples collected from mares aborting owing to EHV-1 infection. Mab 9C6 was chosen for testing 231 field sera from apparently healthy vaccinated and non-vaccinated horses from organized breeding farms belonging to 11 Indian states, and from Bhutan, by B-ELISA and VNT. There was very good agreement between the r...Continue Reading

Citations

Aug 3, 2006·The Veterinary Clinics of North America. Equine Practice·Alessandra Pellegrini-Masini, Leanda C Livesey
Dec 15, 2010·Clinical and Vaccine Immunology : CVI·Yun Young GoUdeni B R Balasuriya

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