Evidence map›Paper›PMID 40776897›Full record

ArticleEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin2025

Novel influenza A(H1N2) seasonal reassortant virus identified in a patient, Sweden, April 2025.

Dorina Ujvari, Tove Samuelsson Hagey, AnnaSara Carnahan, Neus Latorre-Margalef

Abstract readCase Reports
PubMed Full text at PMC Publisher
In one paragraph

Article in Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Dorina UjvariUnit for Laboratory Surveillance of Viral Pathogens and Vaccine Preventable Diseases, National Influenza Center, Department of Microbiology, The Public Health Agency of Sweden, Solna, Sweden.
Tove Samuelsson HageyUnit for Laboratory Surveillance of Viral Pathogens and Vaccine Preventable Diseases, National Influenza Center, Department of Microbiology, The Public Health Agency of Sweden, Solna, Sweden.
AnnaSara CarnahanUnit for Coordination and Surveillance of Seasonal Viruses, Department of Communicable Disease Control and Health Protection, The Public Health Agency of Sweden, Solna, Sweden.
Neus Latorre-MargalefUnit for Laboratory Surveillance of Viral Pathogens and Vaccine Preventable Diseases, National Influenza Center, Department of Microbiology, The Public Health Agency of Sweden, Solna, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In April 2025, a human seasonal reassortant influenza A(H1N2) virus with a 7:1 genetic constellation was detected in Sweden in a patient seeking primary care for influenza-like illness. The neuraminidase gene of this virus was from A(H3N2) and the remaining genes from A(H1N1)pdm09. The patient recovered. No additional cases have been detected through routine surveillance. This is so far the only identified A(H1N2) reassortant among three seasonal A(H1N1)pdm09 and A(H3N2) reassortants reported in GISAID from Europe during the 2024/25 season.

Indexed as

Influenza A Virus, H1N1 SubtypeInfluenza A Virus, H1N2 SubtypeInfluenza A Virus, H3N2 SubtypeInfluenza, HumanReassortant VirusesHumansNeuraminidasePhylogenySeasonsSwedenNeuraminidaseH1N2influenzareassortant

Identifiers

PMID40776897
PMCPMC12333488

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.