Development of a competitive double antibody lateral flow assay for the detection of antibodies specific to glycoprotein B of Aujeszky's disease virus in swine sera
•A lateral flow assay for the detection of antibodies to Aujeszky's disease virus glycoprotein B.•Competitive sandwich gB-LFA provides specific and sensitive detection of ADV-infected swine. Three lateral flow assays (LFAs) for the detection of antibodies against glycoprotein B (gB) of Aujeszky...
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Published in | Journal of virological methods Vol. 240; pp. 54 - 62 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Netherlands
Elsevier B.V
01.02.2017
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Subjects | |
Online Access | Get full text |
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Summary: | •A lateral flow assay for the detection of antibodies to Aujeszky's disease virus glycoprotein B.•Competitive sandwich gB-LFA provides specific and sensitive detection of ADV-infected swine.
Three lateral flow assays (LFAs) for the detection of antibodies against glycoprotein B (gB) of Aujeszky's disease virus (ADV) in swine sera: a competitive double antibody sandwich LFA without a preincubation step (CDAS-gB-LFA), a CDAS-gB-LFA with a preincubation step (pCDAS-gB-LFA), and a competitive direct gB-LFA have been developed and were compared with each other and with a gB-ELISA. The assays are based on monoclonal antibodies to immunodominant epitopes of ADV gB. The pCDAS-gB-LFA proved to be the most specific and sensitive assay to detect antibodies directed to ADV gB. The specificity and sensitivity of the pCDAS-gB-LFA with the use of an LFA reader for test line intensity measurements were 97.6 and 94.9%, respectively. The lower diagnostic sensitivity of the pCDAS-gB-LFA compared to a gB-ELISA reflects its reduced analytical sensitivity, which was shown in titration experiments with positive sera. The pCDAS-gB-LFA, using the reader-based and visual detection modes, showed good agreement in respect to specificity; however, the LFA reader detection provided a higher diagnostic and analytical sensitivity compared to visual detection. The developed pCDAS-gB-LFA is a rapid, sensitive, and specific method for the detection of antibodies to ADV gB and can be used for screening ADV-infected swine in unvaccinated herds. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0166-0934 1879-0984 |
DOI: | 10.1016/j.jviromet.2016.11.011 |