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Evaluation of the Clinical Performance of 7 Serological Assays for SARS-CoV-2 for Use in Clinical Laboratories.

Publication ,  Journal Article
Plaga, A; Wei, R; Olson, E; Payto, D; Harrington, J; Nwe-Kissig, PT; Strizzi, M; Zilka, S; Ko, J; Colón-Franco, JM
Published in: J Appl Lab Med
July 7, 2021

BACKGROUND: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) serological assays have emerged as a response to the global pandemic, warranting studies evaluating their clinical performance. This study investigated 7 commercially available SARS-CoV-2 serological assays in samples from noninfected individuals and hospitalized patients. METHODS: SARS-CoV-2 qualitative serological assays by Abbott (IgG), Beckman (IgG), DiaSorin (IgG), EUROIMMUN (IgG and IgA), Roche and Bio-Rad (Total) were evaluated using specimens collected pre-December 2019 (n = 393), from nucleic acid amplification testing (NAAT) negative patients (n = 40), and from 53 patients with COVID-19 by NAAT collected 3-21 days post-onset of symptoms (POS) (N = 83). Negative agreement (NA), positive agreement (PA), and positive and negative predictive values (PPV and NPV) at prevalences of 5% and 10% were calculated. RESULTS: The overall %NA; 95% CI in the negative samples were: Roche 99.8%; 99.3-100.2, Beckman 99.8%; 98.7-100.0, Abbott and Bio-Rad 99.3%; 98.0-99.9, DiaSorin 98.4; 97.2-99.6, EUROIMMUN IgG 97.5%; 95.5-98.7, and EUROIMMUN IgA 79.7%; 75.9-83.5), accounting for positive/equivocal results as false positives. The %PA; 95% CI in samples collected 14+ days POS (n = 24) were: Bio-Rad 83.3%; 68.4-98.2, Abbott and Roche 79.2%; 62.9-95.4, EUROIMMUN IgA 70.8%; 52.6-89.0, Beckman 58.3%; 38.6-78.1, DiaSorin 54.2; 34.2-74.1, and EUROIMMUN IgG 50.0%; 30.0-70.0, accounting for negative/equivocal results as false negatives. NPVs ranged from 97.4%-98.9% and 94.7%-97.7% for prevalences 5% and 10%, respectively. PPVs ranged from 15.5%-94.8% and 27.9%-97.4% for prevalences 5% and 10%, respectively. CONCLUSION: The Roche and Beckman assays resulted in fewer false positives, followed by the Bio-Rad and Abbott assays. While the Bio-Rad assay demonstrated higher antibody detection in COVID-19-positive patients, PA claims cannot be established with a high level of confidence in our sample population.

Duke Scholars

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Published In

J Appl Lab Med

DOI

ISSN

2576-9456

Publication Date

July 7, 2021

Volume

6

Issue

4

Start / End Page

998 / 1004

Location

England

Related Subject Headings

  • SARS-CoV-2
  • Predictive Value of Tests
  • Laboratories
  • Humans
  • Cohort Studies
  • Clinical Laboratory Techniques
  • Clinical Laboratory Services
  • Case-Control Studies
  • COVID-19 Serological Testing
  • COVID-19
 

Citation

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Plaga, A., Wei, R., Olson, E., Payto, D., Harrington, J., Nwe-Kissig, P. T., … Colón-Franco, J. M. (2021). Evaluation of the Clinical Performance of 7 Serological Assays for SARS-CoV-2 for Use in Clinical Laboratories. J Appl Lab Med, 6(4), 998–1004. https://doi.org/10.1093/jalm/jfab038
Plaga, Alexis, Ruhan Wei, Elizabeth Olson, Drew Payto, John Harrington, Pyik That Nwe-Kissig, Michelle Strizzi, Sarah Zilka, Jennifer Ko, and Jessica M. Colón-Franco. “Evaluation of the Clinical Performance of 7 Serological Assays for SARS-CoV-2 for Use in Clinical Laboratories.J Appl Lab Med 6, no. 4 (July 7, 2021): 998–1004. https://doi.org/10.1093/jalm/jfab038.
Plaga A, Wei R, Olson E, Payto D, Harrington J, Nwe-Kissig PT, et al. Evaluation of the Clinical Performance of 7 Serological Assays for SARS-CoV-2 for Use in Clinical Laboratories. J Appl Lab Med. 2021 Jul 7;6(4):998–1004.
Plaga, Alexis, et al. “Evaluation of the Clinical Performance of 7 Serological Assays for SARS-CoV-2 for Use in Clinical Laboratories.J Appl Lab Med, vol. 6, no. 4, July 2021, pp. 998–1004. Pubmed, doi:10.1093/jalm/jfab038.
Plaga A, Wei R, Olson E, Payto D, Harrington J, Nwe-Kissig PT, Strizzi M, Zilka S, Ko J, Colón-Franco JM. Evaluation of the Clinical Performance of 7 Serological Assays for SARS-CoV-2 for Use in Clinical Laboratories. J Appl Lab Med. 2021 Jul 7;6(4):998–1004.

Published In

J Appl Lab Med

DOI

ISSN

2576-9456

Publication Date

July 7, 2021

Volume

6

Issue

4

Start / End Page

998 / 1004

Location

England

Related Subject Headings

  • SARS-CoV-2
  • Predictive Value of Tests
  • Laboratories
  • Humans
  • Cohort Studies
  • Clinical Laboratory Techniques
  • Clinical Laboratory Services
  • Case-Control Studies
  • COVID-19 Serological Testing
  • COVID-19