ArticleMedical science monitor : international medical journal of experimental and clinical research2026
Editorial: Increased Respiratory Infections in the 2025-2026 Influenza Season and the (A)H3N2 Virus, a Past Cause of Pandemic Influenza.
Article in Medical science monitor : international medical journal of experimental and clinical research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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.
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.
Who cites it
2 citing papers in PubMed.
- Research progress on the association between viruses and cardiac diseases.Journal of virology · 2026Review
- Influenza A(H3N2) Subclade K: Epidemiology, Molecular Evolution and Vaccine Effectiveness in Europe.Pathogens (Basel, Switzerland) · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During the last century, there were four influenza pandemics, and in 1968, the A(H3N2) influenza virus caused the third-largest pandemic of the 20th century (Hong Kong 'flu). On December 10, 2025, the World Health Organization (WHO) reported a global increase in seasonal influenza, predominantly driven by the H3N2 subclade K (J.2.4.1) viral variant, which is now detected in most countries. On November 20, 2025, the European Centre for Disease Prevention and Control (ECDC) published an assessment of the threat posed by circulating H3N2 subclade K in the European Union and the European Economic Area (EU/EEA), which was identified in up to 50% of cases. On January 5, 2026, the US Centers for Disease Control and Prevention (CDC) reported that the 2025-2026 influenza season, which ended on December 27, 2025, reached a 30-year high in respiratory illness incidence. The 21st century has yet to experience a pandemic-level influenza outbreak. This editorial aims to highlight the status of infections caused by the H3N2 subclade K influenza virus and highlights the importance of influenza surveillance, monitoring, and the development of effective influenza vaccines.
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Registered trials
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.