Evidence map›Paper›PMID 34524886›Full record

ArticleJournal of clinical microbiology2021

Comparing Immunoassays for SARS-CoV-2 Antibody Detection in Patients with and without Laboratory-Confirmed SARS-CoV-2 Infection.

Karoline Leuzinger, Michael Osthoff, Sarah Dräger, Hans Pargger, Martin Siegemund, Stefano Bassetti, Roland Bingisser, Christian H Nickel, Sarah Tschudin-Sutter, Nina Khanna and 4 more

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Antibody response to mRNA SARS-CoV-2 vaccination in 182 patients after allogeneic hematopoietic cell transplantation.Transplant infectious disease : an official journal of the Transplantation Society · 2022
    Article
  11. Risk factors, immune response and whole-genome sequencing of SARS-CoV-2 in a cruise ship outbreak in Norway.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2022
    Article
  12. Article
  13. Review
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

14 authors at 2 institutions in 1 country.

Karoline LeuzingerClinical Virology, University Hospital Basel, Basel, Switzerland.
Michael OsthoffInternal Medicine, University Hospital Basel, Basel, Switzerland.
Sarah DrägerInternal Medicine, University Hospital Basel, Basel, Switzerland.
Hans ParggerIntensive Care Unit, University Hospital Basel, Basel, Switzerland.
Martin SiegemundIntensive Care Unit, University Hospital Basel, Basel, Switzerland.
Stefano BassettiInternal Medicine, University Hospital Basel, Basel, Switzerland.
Roland BingisserEmergency Medicine, University Hospital Basel, Basel, Switzerland.
Christian H NickelEmergency Medicine, University Hospital Basel, Basel, Switzerland.
Sarah Tschudin-SutterInfectious Diseases & Hospital Epidemiology, University Hospital Basel.
Nina KhannaInfectious Diseases & Hospital Epidemiology, University Hospital Basel.
Katharina RentschClinical Chemistry, Laboratory Medicine, University Hospital Basel, Basel, Switzerland.
Manuel BattegayInfectious Diseases & Hospital Epidemiology, University Hospital Basel.
Adrian EgliApplied Microbiology Research, Department of Biomedicine, University of Baselgrid.6612.3, Basel, Switzerland.
Hans H HirschClinical Virology, University Hospital Basel, Basel, Switzerland.ORCID 0000-0003-0883-0423
University Hospital of Basel · CHUniversity of Basel · CH

Funding

Universität Basel (UniBas) MM2109
6 · The paper itself

Abstract

Commercially available SARS-CoV-2-directed antibody assays may assist in diagnosing past exposure to SARS-CoV-2 antigens. We cross-compared the following eight immunoassays detecting antibodies against SARS-CoV-2 nucleocapsid (N) or spike (S) antigens in three cohorts consisting of 859 samples from 622 patients: (#1) EDI novel coronavirus COVID-19 (Epitope), (#2) RecomWell SARS-CoV-2 (Mikrogen), (#3) COVID-19 ELISA (VirCell), (#4) Elecsys anti-SARS-CoV-2 N (Roche), (#5) Liaison SARS-CoV-2 S1/S2 (DiaSorin), (#6) anti-SARS-CoV-2 ELISA (EuroImmun), (#7) Elecsys anti-SARS-CoV-2 S (Roche), and (#8) Liaison SARS-CoV-2 TrimericS (DiaSorin). In cross-sectional cohort 1 (68 sera from 38 patients with documented SARS-CoV-2 infection), agreement between assays #1 to #6 ranged from 75% to 93%, whereby discordance mostly resulted from N-based assays #1 to #4. In cross-sectional cohort 2 (510 sera from 510 patients; 56 documented, 454 unknown SARS-CoV-2 infection), assays #4 to #6 were analyzed further together with assays #7 and #8, revealing 94% concordance (44 [9%] positives and 485 [85%] negatives). Discordance was highest within 2 weeks after SARS-CoV-2/COVID-19 diagnosis and confirmed in the longitudinal cohort 3 (281 sera from 74 COVID-19 patients), using assays #4, #6, #7, and #8. Subanalysis of 20 (27%) initially seronegative cohort 3 patients revealed assay-dependent 50% and 90% seroconversion rates after 8 to 11 days and 14 to 18 days, respectively. Increasing SARS-CoV-2 antibodies were significantly associated with declining levels of viral loads, lactate dehydrogenase, interleukin-6, and C-reactive protein and preceded clearance of SARS-CoV-2 detection in the upper respiratory tract by approximately 1 week. SARS-CoV-2-specific antibody assays show substantial agreement, but interpretation of qualitative and semiquantitative results depends on the time elapsed postdiagnosis and the choice of viral antigen. Mounting of systemic SARS-CoV-2-specific antibodies may predict recovery from viral injury and clearance of mucosal replication.

Indexed as

COVID-19SARS-CoV-2Antibodies, ViralCOVID-19 TestingCross-Sectional StudiesHumansImmunoassayImmunoglobulin GLaboratoriesSensitivity and SpecificitySpike Glycoprotein, CoronavirusAntibodies, ViralImmunoglobulin GSpike Glycoprotein, CoronavirusantibodyCOVID-19nucleocapsidseroconversionspike

Identifiers

PMID34524886
PMCPMC8601224
OpenAlexW3199814828

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.