Evidence map›Paper›PMID 34064509›Full record

ArticleDiagnostics (Basel, Switzerland)2021

Anti-SARS-CoV-2 Receptor-Binding Domain Total Antibodies Response in Seropositive and Seronegative Healthcare Workers Undergoing COVID-19 mRNA BNT162b2 Vaccination.

Gian Luca Salvagno, Brandon M Henry, Giovanni di Piazza, Laura Pighi, Simone De Nitto, Damiano Bragantini, Gian Luca Gianfilippi, Giuseppe Lippi

Abstract read
In one paragraph

Article in Diagnostics (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

64 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Observational
  7. Article
  8. Article
  9. Article
  10. Article
  11. Observational
  12. Article
  13. Article
  14. Advances in laboratory medicine · 2023
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. COVID-19 and Frailty.Vaccines · 2023
    Review

4 more citing papers are in PubMed but not listed here.

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.

Gian Luca SalvagnoSection of Clinical Biochemistry, University of Verona, 37126 Verona, Italy.
Brandon M HenryCincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, OH 45229, USA.
Giovanni di PiazzaMedical Direction, Pederzoli Hospital, 37019 Peschiera del Garda, Italy.
Laura PighiSection of Clinical Biochemistry, University of Verona, 37126 Verona, Italy.
Simone De NittoSection of Clinical Biochemistry, University of Verona, 37126 Verona, Italy.
Damiano BragantiniInfectious Diseases Unit, Pederzoli Hospital, 37019 Peschiera del Garda, Italy.
Gian Luca GianfilippiMedical Direction, Pederzoli Hospital, 37019 Peschiera del Garda, Italy.
Giuseppe LippiSection of Clinical Biochemistry, University of Verona, 37126 Verona, Italy.ORCID 0000-0001-9523-9054

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study monitored total anti-SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) RBD (receptor-binding domain) antibodies levels in a large population of healthcare workers undergoing mRNA COVID-19 vaccination.

methodsThe study population consisted of employees of Pederzoli Hospital of Peschiera del Garda (Verona, Italy), who underwent voluntary vaccination with two doses of COVID-19 mRNA BNT162b2 (Comirnaty; Pfizer Inc). Venous blood was drawn immediately before the first vaccine dose, as well as 21 days (immediately before second vaccine dose) and 50 days afterwards. Humoral response was assessed with Roche Elecsys Anti-SARS-CoV-2 S total antibodies, on Roche Cobas 6000 (Roche Diagnostics).

resultsThe final study population consisted of 925 subjects (mean age, 44 ± 13 years; 457 women), 206 (22.3%) anti-SARS-CoV-2 baseline seropositive. The increase of total anti-SARS-CoV-2 RBD antibodies levels 21 days after the first vaccine dose was ~3 orders of magnitude higher in seropositive than in seronegative individuals (11782 vs. 42 U/mL;

conclusionSignificant difference exists in post-mRNA COVID-19 vaccine immune response in baseline seronegative and seropositive subjects, which seems dependent on age and sex in seronegative subjects, as well as on baseline anti-SARS-CoV-2 antibodies level in seropositive patients.

Indexed as

antibodiesCOVID-19immune responseSARS-CoV-2vaccine

Identifiers

PMID34064509
PMCPMC8147939

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.