Evidence map›Paper›PMID 34838782›Full record

ArticleClinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases2022

Immunogenicity trends 1 and 3 months after second BNT162B2 vaccination among healthcare workers in Israel.

Yael Shachor-Meyouhas, Khetam Hussein, Halima Dabaja-Younis, Moran Szwarcwort-Cohen, Ronit Almog, Avi Weissman, Michal Mekel, Gila Hyams, Nethanel A Horowitz, Vardit Gepstein and 5 more

Abstract read
In one paragraph

Article in Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–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

7 citing papers in PubMed.

  1. Article
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  3. Association between IgG antibody levels and adverse events after first and second Bnt162b2 mRNA vaccine doses.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2022
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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

15 authors.

Yael Shachor-MeyouhasPaediatric Infectious Disease Unit, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel; Management, Rambam Health Care Campus, Haifa, Israel; The Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel. Electronic address: y_shahor@rambam.health.gov.il.
Khetam HusseinThe Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel; Infection Control Unit, Rambam Health Care Campus, Haifa, Israel.
Halima Dabaja-YounisPaediatric Infectious Disease Unit, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel.
Moran Szwarcwort-CohenVirology Laboratory, Rambam Health Care Campus, Haifa, Israel.
Ronit AlmogEpidemiology Department and Biobank, Rambam Health Care Campus, Haifa, Israel; School of Public Health, University of Haifa, Haifa, Israel.
Avi WeissmanManagement, Rambam Health Care Campus, Haifa, Israel.
Michal MekelManagement, Rambam Health Care Campus, Haifa, Israel; The Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
Gila HyamsNursing Management, Rambam Health Care Campus, Haifa, Israel.
Nethanel A HorowitzManagement, Rambam Health Care Campus, Haifa, Israel; The Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel; Department of Haematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa, Israel.
Vardit GepsteinManagement, Rambam Health Care Campus, Haifa, Israel; Department of Paediatrics B, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel.
Itamar NetzerManagement, Rambam Health Care Campus, Haifa, Israel.
Hagar Cohen SabanEpidemiology Department and Biobank, Rambam Health Care Campus, Haifa, Israel.
Neta PetersielInfectious Disease Unit, Rambam Health Care Campus, Haifa, Israel.
Jalal TarabeiaInfection Control Unit, Rambam Health Care Campus, Haifa, Israel; Nursing Faculty, The Max Stern Yezreel Valley College, Yezreel Valley, Israel.
Michael HalberthalManagement, Rambam Health Care Campus, Haifa, Israel; The Ruth & Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesWe evaluated the antibody response to the BNT162B2 vaccine among healthcare workers (HCWs) to identify factors associated with decreased immunogenicity.

methodsThis prospective cohort study included consenting HCWs who completed a questionnaire regarding background illnesses, medications, and post-vaccination allergic reactions or rash. All HCWs were tested for anti-spike antibodies (LIAISON SARS-CoV-2 S1/S2 IgG assay) 1 and 3 months after the second vaccine dose. A multivariate mixed linear model was adjusted to participants' data and fit to predict antibody levels after the second BNT162B2 vaccine dose, based on antibody levels at 1 month and the slope between 3 months and 1 month. Multivariate analyses identified factors associated with lower antibody levels.

resultsIn total 1506 HCWs were tested for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies. Older age was associated with lower mean antibody levels (-1.22 AU/mL, p < 0.001, 95%CI -1.43 to -1.01). In addition, male sex (-22.16 AU/mL, p < 0.001, 95%CI -27.93 to -16.39), underlying condition (-10.86 AU/mL, p 0.007, 95%CI -18.81 to -2.91) and immunosuppressive treatment (-28.57 AU/mL, p 0.002, 95%CI -46.85 to -10.29) were associated with significantly lower mean antibody levels. Allergic reactions after vaccine administration or peri-vaccination glucocorticosteroid treatment were not correlated with antibody levels.

conclusionsMost HCWs had measurable antibodies at 3 months. Risk factors for lower antibody levels were older age, male sex, underlying condition, and immunosuppressive treatment. These factors may be considered when planning booster doses during vaccine shortages.

Indexed as

BNT162 VaccineCOVID-19Antibodies, ViralHealth PersonnelHumansIsraelMaleProspective StudiesSARS-CoV-2VaccinationAntibodies, ViralBNT162 VaccineBNT162b2COVID-19Healthcare workersImmunogenicitySerology

Identifiers

PMID34838782
PMCPMC8611821

What OpenQuestion holds

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Registered trials

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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.