期刊
JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION
卷 28, 期 2, 页码 88-97出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/1040638715625092
关键词
Competitive enzyme-linked immunosorbent assay; equine infectious anemia; OIE validation; screening test; surveillance
资金
- Italian Ministry of Health
The Italian National Reference Center for equine infectious anemia (CRAIE; Rome, Italy) developed and validated a monoclonal, recombinant p26-based competitive enzyme-linked immunosorbent assay (cELISA) for the detection of EIA virus antibodies employing the 2010 criteria of the World Organization for Animal Health (OIE). The following parameters were evaluated: cutoff values, repeatability, reproducibility, concordance, analytical sensitivity (Se), absolute analytical specificity (Sp), and diagnostic Se and Sp. Positive and negative predictive values were also defined in relation to the estimated prevalence. When the cELISA was used as a screening test for 96,468 samples in the Italian EIA surveillance program, 17% more EIA cases were detected than by the agar gel immunodiffusion test, and the apparent diagnostic Sp estimated from these samples was 99.8%, which was more than the diagnostic Sp (80.2%) estimated from validation. The high Se and Sp of the cELISA confirm its fit for purpose as a screening test.
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