Evidence map›Paper›PMID 40826247›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2026

Immunogenicity and Safety of the COVID-19 Messenger RNA Vaccine Coadministered With Influenza and 23-valent Pneumococcal Polysaccharide Vaccines.

Omid Rezahosseini, Jens Ulrik Stæhr Jensen, Hana Khajeh Rahimi, Nikoline Erland Jensen, Charlotte Sværke Jørgensen, Thea K Fischer, Sisse Rye Ostrowski, Jens Lundgren, Lars Ostergaard, Zitta Barrella Harboe

Abstract read
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

10 authors.

Omid RezahosseiniDepartment of Pulmonary and Infectious Diseases, Copenhagen University Hospital, North Zealand, Hillerød, Denmark.ORCID 0000-0003-2198-1904
Jens Ulrik Stæhr JensenDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0003-4036-0521
Hana Khajeh RahimiDepartment of Pulmonary and Infectious Diseases, Copenhagen University Hospital, North Zealand, Hillerød, Denmark.
Nikoline Erland JensenDepartment of Pulmonary and Infectious Diseases, Copenhagen University Hospital, North Zealand, Hillerød, Denmark.
Charlotte Sværke JørgensenDepartment of Virology & Microbiological Preparedness, Statens Serum Institute, Copenhagen, Denmark.
Thea K FischerDepartment of Clinical Research, Copenhagen University Hospital  Hillerød, North Zealand, Denmark.ORCID 0000-0003-4812-980X
Sisse Rye OstrowskiDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0001-5288-3851
Jens LundgrenDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0001-8901-7850
Lars OstergaardDepartment of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark.
Zitta Barrella HarboeDepartment of Pulmonary and Infectious Diseases, Copenhagen University Hospital, North Zealand, Hillerød, Denmark.ORCID 0000-0001-5552-0095

Funding

Inge Lehmanns 3162-00031B
6 · The paper itself

Abstract

backgroundCoadministering vaccines can effectively enhance vaccination uptake in adults. Despite the potential benefits, there is limited data supporting this practice. We investigated the immunogenicity and safety of coadministering coronavirus disease 2019 (COVID-19) messenger RNA, influenza, and pneumococcal (PPSV23) vaccines in adults.

methodsAs part of the national vaccination program, 3104 adults received a fourth dose (second booster) of an messenger RNA COVID-19 vaccine alone or coadministered with an influenza vaccine, with or without PPSV23 from January to December 2022. We measured severe acute respiratory syndrome coronavirus 2 anti-spike and anti-receptor binding domain (RBD) immunoglobulin G (IgG) concentrations and neutralization activity before and 1 month after vaccination. We estimated the odds of a ≥2-fold geometric mean fold rise (GMFR) and adverse events (AEs) using logistic regression models.

resultsThe median age of the 3104 participants was 70 years (interquartile range: 60-77); 1670 (54%) were female. Anti-spike IgG GMFRs were 1.95, 1.56, and 1.42, whereas for neutralization activity, values were 8.99, 12.42, and 8.23, in the COVID-19, COVID-19 + influenza, and COVID-19 + influenza + PPSV23 groups, respectively. The adjusted odds of a ≥2-fold anti-spike IgG GMFR were 0.64 (P < .001) and 0.43 (P < .001), and for neutralization activity, 0.96 (P = .833) and 0.97 (P = .954), for COVID-19 + influenza and COVID-19 + influenza + PPSV23, respectively. The odds for anti-RBD GMFRs followed similar patterns. Systemic AEs were more common in the COVID-19 + influenza + PPSV23 group (adjusted odds ratio: 2.04, P < .001), though no serious AEs were reported.

conclusionsCoadministering COVID-19, influenza, and PPSV23 vaccines seems feasible, without significantly impairing neutralizing antibody responses. These findings support the recommendation for vaccine coadministration in adults.

Indexed as

23-valent pneumococcal polysaccharide vaccineCOVID-19 mRNA vaccineimmunogenicityinfluenzasafety

Identifiers

PMID40826247
PMCPMC13016764

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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.