Evidence map›Paper›PMID 15138175›Full record

ArticleClinical and diagnostic laboratory immunology2004

Validation of a blocking enzyme-linked immunosorbent assay for detection of antibodies against porcine reproductive and respiratory syndrome virus.

Neal H Ferrin, Ying Fang, Craig R Johnson, Michael P Murtaugh, Dale D Polson, Montserrat Torremorell, Marie L Gramer, Eric A Nelson

Open access · diamondAbstract readComparative StudyValidation Study
In one paragraph

Article in Clinical and diagnostic laboratory immunology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.9field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 46 citations in OpenAlex.

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  16. Serodiagnosis of porcine reproductive and respiratory syndrome virus infection with the use of glycoprotein 5 antigens.Canadian journal of veterinary research = Revue canadienne de recherche veterinaire · 2010
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Neal H FerrinDepartment of Veterinary Science, P.O. Box 2175, North Campus Dr., South Dakota State University, Brookings, SD 57007, USA. neal_ferrin@sdstate.edu
Ying Fang
Craig R Johnson
Michael P Murtaugh
Dale D Polson
Montserrat Torremorell
Marie L Gramer
Eric A Nelson
South Dakota State University · USBoehringer Ingelheim (United States) · USUniversity of Minnesota · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Porcine reproductive and respiratory syndrome (PRRS) continues to be one of the most significant diseases of swine. IDEXX HerdChek PRRS, a commercially available enzyme-linked immunosorbent assay (ELISA), has become the industry standard for the detection of antibodies against PRRS virus (PRRSV). The need to accurately determine the PRRSV serostatus of herds and individual animals has prompted the development of several follow-up assay methods. A highly specific and repeatable blocking ELISA (bELISA) was developed on the basis of the use of an expressed PRRSV nucleocapsid (N) protein as the antigen and a biotinylated monoclonal antibody. Validation of the bELISA used sera from 316 animals experimentally and naturally infected with North American PRRSV and sera from 370 uninfected animals. Receiver operating characteristic analysis of the data calculated a diagnostic sensitivity of 97.8% and a diagnostic specificity of 100%. The between-run coefficient of variation of an internal quality control serum was 4.24%. The bELISA was able to detect seroconversion as well as the IDEXX ELISA and the indirect fluorescent antibody (IFA) assay; kappa values were 0.94 and 0.96, respectively. A collection of 133 serum samples with unexpected positive IDEXX ELISA results was obtained from 4,038 diagnostic samples submitted from farms from which PRRS-negative results were expected. The bELISA identified 97% of the samples as PRRS seronegative, while the IFA identified 100% as seronegative. The anticipated use of the bELISA is as a follow-up test to the IDEXX ELISA for determining the PRRSV serostatus of individual animals with unexpected positive test results from swine herds from which negative results are expected.

Indexed as

Analysis of VarianceAnimalsAntibodies, MonoclonalAntibodies, ViralAntibody SpecificityBiotinylationBlotting, WesternConfidence IntervalsElectrophoresis, Polyacrylamide GelEnzyme-Linked Immunosorbent AssayFalse Positive ReactionsInfectionsNucleocapsid ProteinsPorcine respiratory and reproductive syndrome virusPredictive Value of TestsRecombinant ProteinsAntibodies, MonoclonalAntibodies, ViralNucleocapsid ProteinsRecombinant Proteins

Identifiers

PMID15138175
PMCPMC404579
OpenAlexW2144028314

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.