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Public Misperceptions of COVID-19 Vaccine Effectiveness and Waning: Experimental Evidence from Ireland — Europe PMC PPR:PPR573606

Source: Europe PMC
Original: https://europepmc.org/article/PPR/PPR573606
DOI: 10.31234/osf.io/vqexc
License (as archived): CC0-1.0
Archived: 2026-10-15T16:00:32.223Z
SHA-256 of the archived text: 523f5445c3733efbe787b8efa3a0ae0b78f78e3bbe5a4709aa2022b1d680addd
Stable URL of this page: https://metraipolis.com/documento/dc_1df87f09fba2

How to cite

Public Misperceptions of COVID-19 Vaccine Effectiveness and Waning: Experimental Evidence from Ireland — Europe PMC PPR:PPR573606 — Europe PMC, https://europepmc.org/article/PPR/PPR573606 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_1df87f09fba2 (Metraipolis archive dc_1df87f09fba2, sha256 523f5445c3733efbe787b8efa3a0ae0b78f78e3bbe5a4709aa2022b1d680addd)

BibTeX

@misc{dc1df87f09fba2,
  title = {Public Misperceptions of COVID-19 Vaccine Effectiveness and Waning: Experimental Evidence from Ireland — Europe PMC PPR:PPR573606},
  howpublished = {Europe PMC},
  url = {https://europepmc.org/article/PPR/PPR573606},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_1df87f09fba2; sha256 523f5445c3733efbe787b8efa3a0ae0b78f78e3bbe5a4709aa2022b1d680addd},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: Europe PMC, https://europepmc.org/article/PPR/PPR573606. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Objectives The study set out to measure public understanding of COVID-19 vaccine effectiveness (VE) and how effectiveness wanes with time since vaccination. Because perceived VE is a strong predictor of vaccine uptake, measuring perceptions can inform public health policy and communications. Study DesignOnline randomised experiment.MethodThe study was undertaken in Ireland, which has high vaccination rates. A nationally representative sample (n=2,000) responded to a scenario designed to measure perceptions of COVID-19 VE against mortality. The length of time since vaccination in the scenario was randomly varied across four treatment arms (2 weeks, 3 months, 6 months, 9 months).ResultsThe public underestimates VE, with substantial variation in perceptions. A majority (57%) gave responses implying perceived VE against mortality of 0-85%, i.e. below scientific estimates. Among this group, mean perceived VE was just 49%. Over a quarter (26%) gave responses implying perceived VE greater than 95%, i.e. above scientific estimates. Comparing the four treatment groups, responses took no account of vaccine waning. Perceived VE was actually higher 9 months after vaccination than 2 weeks after vaccination. ConclusionDespite high vaccination rates, most of the public in Ireland underestimates VE. Furthermore, the general public has not absorbed the concept of vaccine waning in the months following vaccination. Both misperceptions may reduce vaccine uptake, unless public health authorities act to correct them through improved communication.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (retro-catalogo: tutto il sottoinsieme open access di Europe PMC con licenza libera).
Pubblicazione: PsyArXiv, 2022 (prima pubblicazione 2022-11-17).
Identificativi: DOI 10.31234/osf.io/vqexc.
Pagina: https://europepmc.org/article/PPR/PPR573606 — https://doi.org/10.31234/osf.io/vqexc. Autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza dell'articolo dichiarata da Europe PMC: CC0 (la versione è indicata dall'editore sulla pagina). Abstract riportato senza modifiche al contenuto, con attribuzione; deposito marcato CC0.
Letto il 2026-10-15T15:24:13.500Z tramite l'API REST ufficiale di Europe PMC (EMBL-EBI), nel rispetto del robots.txt e del crawl-delay.