Evidence map›Paper›PMID 36992197›Full record

ArticleVaccines2023

Anaphylactic Reactions to COVID-19 Vaccines: An Updated Assessment Based on Pharmacovigilance Data.

Fotini Boufidou, Sophia Hatziantoniou, Kalliopi Theodoridou, Helena C Maltezou, Konstantinos Vasileiou, Cleo Anastassopoulou, Snežana Medić, Athanasios Tsakris

Open access · goldAbstract read
In one paragraph

Article in Vaccines, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.9field-weighted citation impact, top 7% 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

10 citing papers in PubMed, 16 citations in OpenAlex.

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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

8 authors at 4 institutions in 2 countries.

Fotini BoufidouNeurochemistry and Biological Markers Unit, 1st Department of Neurology, Eginition Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece.ORCID 0000-0001-9691-9465
Sophia HatziantoniouLaboratory of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, University of Patras, 26504 Patras, Greece.ORCID 0000-0002-5877-9091
Kalliopi TheodoridouDepartment of Microbiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.
Helena C MaltezouDirectorate of Research, Studies and Documentation, National Public Health Organization, 15123 Athens, Greece.ORCID 0000-0003-0264-3547
Konstantinos VasileiouDepartment of Pharmacy, School of Health Sciences, University of Patras, 26504 Patras, Greece.ORCID 0000-0002-8341-0261
Cleo AnastassopoulouDepartment of Microbiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.ORCID 0000-0001-7666-9198
Snežana MedićDepartment of Epidemiology, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia.
Athanasios TsakrisDepartment of Microbiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.ORCID 0000-0003-0656-4715
National and Kapodistrian University of Athens · GRUniversity of Patras · GRNational Public Health Organization · GRUniversity of Novi Sad · RS

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed at producing an updated assessment of the incidence of anaphylaxis associated with COVID-19 vaccines based on pharmacovigilance data. Anaphylactic reaction and anaphylactic shock data post-COVID-19-vaccination reported from week 52, 2020 to week 1 or week 2, 2023 were collected from the VAERS and EudraVigilance databases, respectively, and analyzed comparatively. Incidence rates were calculated using the corresponding administered vaccine doses as denominators for all licensed vaccines and both platform types (mRNA or vectored). The latest data from the present analysis showed lower anaphylaxis incidence associated with COVID-19 vaccination compared to previous estimates from week 52, 2020 to week 39, 2021 (anaphylactic reaction: 8.96 (95% CI 8.80-9.11)/million doses overall (EEA: 14.19 (95% CI 13.92-14.47)/million/US: 3.17 (95% CI 3.03-3.31)/million); anaphylactic shock: 1.46 (95% CI 1.39-1.52)/million doses overall (EEA: 2.47 (95% CI 2.36-2.58)/million/US: 0.33 (95% CI 0.29-0.38)/million)). Incidence rates varied by vaccine and were higher as captured in EudraVigilance compared to the VAERS and for vectored compared to mRNA vaccines. Most reported cases had a favorable outcome. The extremely rare fatalities (overall rates across continents 0.04 (95% CI 0.03-0.06)/million doses for anaphylactic reaction and 0.02 (95% CI 0.01-0.03)/million vaccine doses for anaphylactic shock) were also associated with vector-rather than mRNA-based vaccines. The diminished incidence of anaphylaxis post-vaccination with COVID-19 vaccines offers assurance about their safety, as does the continuous potential adverse events monitoring through specialized pharmacovigilance databases.

Indexed as

allergic reactionsanaphylaxisCOVID-19 vaccineshypersensitivitypolyethylene glycol (PEG)polysorbates

Identifiers

PMID36992197
PMCPMC10051410
OpenAlexW4323663133

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.