Evidence map›Paper›PMID 41663358›Full record

ArticleNature communications2026

Vaccination against H5 HP avian influenza virus leads to persistent immune response in wild king penguins.

Mathilde Lejeune, Jérémy Tornos, Tristan Bralet, Camille De Pasquale, Elsa Marçon, Pascale Massin, Béatrice Grasland, Antoine Stier, Thierry Boulinier

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
  2. Article
  3. 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

9 authors.

Mathilde LejeuneCentre d'Ecologie Fonctionnelle et Evolutive (CEFE), CNRS, Université Montpellier, EPHE, IRD, Montpellier, France.
Jérémy TornosCentre d'Ecologie Fonctionnelle et Evolutive (CEFE), CNRS, Université Montpellier, EPHE, IRD, Montpellier, France.ORCID http://orcid.org/0000-0002-8793-2518
Tristan BraletCentre d'Ecologie Fonctionnelle et Evolutive (CEFE), CNRS, Université Montpellier, EPHE, IRD, Montpellier, France.
Camille De PasqualeCentre d'Ecologie Fonctionnelle et Evolutive (CEFE), CNRS, Université Montpellier, EPHE, IRD, Montpellier, France.ORCID http://orcid.org/0009-0003-8508-2219
Elsa MarçonUniversité de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France.ORCID http://orcid.org/0009-0007-4541-7001
Pascale MassinANSES, Laboratoire de Ploufragan-Plouzané-Niort, Laboratoire National de Référence pour l'influenza aviaire, Unité de virologie, Immunologie, Parasitologie, Aviaires et Cunicoles, Ploufragan, France.ORCID http://orcid.org/0000-0003-1182-0736
Béatrice GraslandANSES, Laboratoire de Ploufragan-Plouzané-Niort, Laboratoire National de Référence pour l'influenza aviaire, Unité de virologie, Immunologie, Parasitologie, Aviaires et Cunicoles, Ploufragan, France.
Antoine StierUniversité de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France.
Thierry BoulinierCentre d'Ecologie Fonctionnelle et Evolutive (CEFE), CNRS, Université Montpellier, EPHE, IRD, Montpellier, France. thierry.boulinier@cefe.cnrs.fr.ORCID http://orcid.org/0000-0002-5898-7667

Funding

Agence Nationale de la Recherche (French National Research Agency) ANR-21-CE35-0016Agence Nationale de la Recherche (French National Research Agency) ANR-25-CE35-0691Institut Polaire Français Paul Emile Victor (Institut Français pour la Recherche et la Technologie Polaire) ECOENERGY-119Institut Polaire Français Paul Emile Victor (Institut Français pour la Recherche et la Technologie Polaire) ECOPATH-1151
6 · The paper itself

Abstract

Since 2021, the panzootic nature of high pathogenicity avian influenza (HPAI) represents an increasing threat to wild vertebrate populations. In this context, recent vaccines developed for poultry could provide tools for the conservation of wild endangered birds populations. The king penguin (Aptenodytes patagonicus), a long-lived seabird breeding in dense colonies with an extended chick-rearing period, has been identified as a possible surrogate species for a vaccination trial in a sub-Antarctic natural setting. Here we investigate the immune response of king penguin chicks to a self-amplifying mRNA vaccine against a H5 HPAI clade 2.3.4.4b protein. The cohort entails thirty vaccinated chicks (primo- and boost-injections), and 20 unvaccinated controls. Along 250 days of monitoring, the vaccinated chicks show a high and persistent immune response, granting a strong sero-neutralisation capacity against the virus, up to fledging. No adverse effects are observed. Screening for antibodies against unspecific avian influenza viruses suggests that no natural infection has occurred over the entire trial. The emergence of HPAI in the Southern Indian Ocean in October 2024 highlights the timeliness of such experimental tests. Our results thus show the vaccine could provide a potentially powerful tool for mitigation of avian flu outbreaks in the wild.

Indexed as

Hemagglutinin Glycoproteins, Influenza VirusInfluenza A virusInfluenza in BirdsInfluenza VaccinesSpheniscidaeVaccinationAnimalsAnimals, WildAntibodies, ViralAntibodies, ViralHemagglutinin Glycoproteins, Influenza VirusInfluenza Vaccines

Identifiers

PMID41663358
PMCPMC12886961

What OpenQuestion holds

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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.