Investigation of AGID and two commercial ELISAs for the detection of Bovine viral diarrhea virus–specific antibodies in sheep serum

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)181-185
Journal / PublicationJournal of Veterinary Diagnostic Investigation
Volume29
Issue number2
Early online date1 Mar 2017
Publication statusPublished - Mar 2017

Abstract

Effective control and the eventual eradication of Bovine viral diarrhea virus (BVDV) from cattle populations depend on the accurate identification of infected animals. Although typically a disease agent of cattle, BVDV is known to infect a wide variety of nonbovine species, including sheep. However, validation of serologic tests in these nonbovine species, particularly sheep, is lacking. We analyzed 99 sheep sera (57 samples from Pestivirus-naive sheep, and 42 samples from BVDV-inoculated sheep) in order to investigate 3 serologic tests: the agarose gel immunodiffusion (AGID) and 2 commercial enzyme-linked immunosorbent assays (ELISAs) for detection of BVDV antibodies. At the manufacturer’s cutoff thresholds, the AGID performed with 95.2% diagnostic sensitivity; ELISA-A performed with sensitivity of 90.5% and ELISA-B with 69.1%. All 3 tests performed with 100% diagnostic specificity. Two-graph receiver operating characteristic analysis showed that performance characteristics were optimized, such that both diagnostic sensitivity and diagnostic specificity were >95% for both ELISAs, if the thresholds were altered to 34.9% inhibition for ELISA-A and 63.5 signal-to-noise ratio for ELISA-B.

Research Area(s)

  • Bovine viral diarrhea virus, serologic tests, sheep, test validation

Bibliographic Note

Research Unit(s) information for this publication is provided by the author(s) concerned.

Citation Format(s)

Investigation of AGID and two commercial ELISAs for the detection of Bovine viral diarrhea virus–specific antibodies in sheep serum. / Evans, Caitlin A.; Lanyon, Sasha R.; Reichel, Michael P.

In: Journal of Veterinary Diagnostic Investigation, Vol. 29, No. 2, 03.2017, p. 181-185.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review