ReviewInfluenza and other respiratory viruses2026
Effectiveness of Influenza Vaccines in Italy in the 2024/2025 Season: A Nationwide, Test-Negative Design Study Based on Surveillance Records.
Review in Influenza and other respiratory viruses, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.
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.
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
1 citing paper in PubMed.
- Correction to "Effectiveness of Influenza Vaccines in Italy in the 2024/2025 Season: A Nationwide, Test-Negative Design Study Based on Surveillance Records".Influenza and other respiratory viruses · 2026Article
Corrections and comments
- Erratum issued
Authors and funding
13 authors.
Funding
Abstract
The 2024/2025 influenza season in Italy was characterised by cocirculation of influenza A and B viruses. Monitoring influenza vaccine effectiveness (IVE) remains essential to guide public health policy due to antigenic shifts and varying strain circulation. In this study, we aimed to estimate IVE in primary care and hospital settings during the 2024/2025 season in Italy. A nationwide test-negative control design was used. Data were collected from the RespiVirNet surveillance system, encompassing both primary care and hospital settings. A total of 8842 participants were included in the primary care analysis and 2492 in the hospital analysis. Adjusted vaccine effectiveness (aVE) against any influenza virus was 69.0% (95% CI: 60.4%-75.9%) in primary care and 62.3% (95% CI: 45.9%-74.2%) in hospital settings. Effectiveness was highest among individuals under 18 years and decreased with age. Influenza B showed the highest aVE (83.6% in primary care; 95.0% in hospital settings), particularly among younger individuals. aVE for influenza A subtypes was lower, with A H1N1pdm09 (54.0% in primary care; 63.8% in hospital) and A H3N2 (60.1% in primary care; 45.5% in hospital) showing moderate effectiveness. The results suggest that influenza vaccines were effective in preventing medically attended influenza disease, both in primary care and hospital settings. These findings provide valuable insights for public health planning and vaccine policy in Italy.
Indexed as
Identifiers
What OpenQuestion holds
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.