SynthesisJournal of medical virology2022
Postvaccination SARS-CoV-2 infection among healthcare workers: A systematic review and meta-analysis.
Synthesis in Journal of medical virology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.
What it found
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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.
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.
Who cites it
21 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Effectiveness and Safety of COVID-19 Vaccinations: An Umbrella Meta-Analysis.International journal of public health · 2023Pooled it
- Risk factors affecting COVID-19 vaccine effectiveness identified from 290 cross-country observational studies until February 2022: a meta-analysis and meta-regression.BMC medicine · 2022Pooled it
- Postvaccination SARS-CoV-2 infection among healthcare workers: A systematic review and meta-analysis.Journal of medical virology · 2022Pooled it
- Increase in Healthcare-Associated Infections: Is COVID-19 Responsible? A Narrative Review.Microorganisms · 2026Review
- Impact of Occupational and Extra-Professional Exposure Across the Different Waves of the Pandemic on the Risk of SARS-CoV-2 Infection Among Healthcare Workers-The ORCHESTRA Project.Healthcare (Basel, Switzerland) · 2026Article
- COVID-19 Vaccination Uptake and Effectiveness for Hospitalized Cases Among Healthcare Workers in Tertiary Hospital.Vaccines · 2025Article
- Characteristics of health care workers with SARS-CoV-2 at a COVID-19 hospital in Türkiye: Homologous versus heterologous vaccination.Pakistan journal of medical sciences · 2024Article
- Back to the Future: Immune Protection or Enhancement of Future Coronaviruses.Microorganisms · 2024Review
- SARS-CoV-2 anti-N antibodies among healthcare personnel without previous known COVID-19.Antimicrobial stewardship & healthcare epidemiology : ASHE · 2024Article
- Observational
- Observational
- SARS-CoV-2 Infections, Re-Infections and Clinical Characteristics: A Two-Year Retrospective Study in a Large University Hospital Cohort of Vaccinated Healthcare Workers.Journal of clinical medicine · 2023Article
- Article
- Efficacy and safety of Lianhua Qingwen capsules combined with standard of care in the treatment of adult patients with mild to moderate COVID-19 (FLOSAN): protocol for a randomized, double-blind, international multicenter clinical trial.Journal of thoracic disease · 2023Article
- SARS-CoV-2 Related Antibody-Dependent Enhancement Phenomena In Vitro and In Vivo.Microorganisms · 2023Review
- COVID-19 as an Occupational Disease-Temporal Trends in the Number and Severity of Claims in Germany.International journal of environmental research and public health · 2023Article
- Clinical characteristics and outcomes of healthcare workers with COVID-19 pre- and postvaccination.Journal of medical virology · 2022Article
- Antibody Dependent Enhancement of SARS-CoV-2 Infection in the Era of Rapid Vaccine Development.Medical archives (Sarajevo, Bosnia and Herzegovina) · 2022Review
- Article
- Evaluation of the effect ofFrontiers in nutrition · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Healthcare workers (HCWs) remain on the front line of the battle against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and coronavirus disease 2019 (COVID-19) infection and are among the highest groups at risk of infection during this raging pandemic. We conducted a systematic review and meta-analysis to assess the incidence of postvaccination SARS-CoV-2 infection among vaccinated HCWs. We searched multiple databases from inception through August 2021 to identify studies that reported on the incidence of postvaccination SARS-CoV-2 infection among HCWs. Meta-analysis was performed to determine pooled proportions of COVID-19 infection in partially/fully vaccinated as well as unvaccinated individuals. Eighteen studies with 228 873 HCWs were included in the final analysis. The total number of partially vaccinated, fully vaccinated, and unvaccinated HCWs were 132 922, 155 673, and 17 505, respectively. Overall pooled proportion of COVID-19 infections among partially/fully vaccinated and unvaccinated HCWs was 2.1% (95% confidence interval [CI] 1.2-3.5). Among partially vaccinated, fully vaccinated and unvaccinated HCWs, pooled proportion of COVID-19 infections was 2.3% (CI 1.2-4.4), 1.3% (95% CI 0.6-2.9), and 10.1% (95% CI 4.5-19.5), respectively. Our analysis shows the risk of COVID-19 infection in both partially and fully vaccinated HCWs remains exceedingly low when compared to unvaccinated individuals. There remains an urgent need for all frontline HCWs to be vaccinated against SARS-CoV-2 infection.
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