ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2019
Intraseason Waning of Influenza Vaccine Effectiveness.
Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 3 of them syntheses that pooled 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.
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
74 citing papers in PubMed, 3 syntheses or guidelines pooled it, 117 citations in OpenAlex.
- Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices - United States, 2025-26 Influenza Season.MMWR. Morbidity and mortality weekly report · 2025Guideline
- Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices - United States, 2024-25 Influenza Season.MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports · 2024Guideline
- Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices - United States, 2022-23 Influenza Season.MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports · 2022Guideline
- Trial
- A Retrospective Test-Negative Case-Control Study to Evaluate Influenza Vaccine Effectiveness in Preventing Hospitalizations in Children.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021Trial
- Follicular T helper cells shape the HCV-specific CD4+ T cell repertoire after virus elimination.The Journal of clinical investigation · 2020Trial
- Respiratory Syncytial Virus-Related Hospitalizations Among Infants Receiving Nirsevimab.JAMA network open · 2026Article
- Ten tips for the first hemodialysis sessions.Clinical kidney journal · 2026Review
- Ganoderma lucidum spore powder enhances IFN-α-mediated antiviral capacity of COVID-19 vaccine boosters revealed by single-cell multi-omics sequencing.Journal of advanced research · 2026Article
- Intraseasonal waning of influenza vaccine effectiveness and implications for the optimal timing of seasonal vaccination programs: A scoping review.Canada communicable disease report = Releve des maladies transmissibles au Canada · 2026Article
- Article
- Breakthrough infections and incomplete vaccine efficacy drive pathogen immune escape.PloS one · 2026Article
- When to vaccinate for seasonal influenza: check the peak forecast.BMC public health · 2025Article
- Waning in influenza vaccine effectiveness against influenza A(H1N1)pdm09-associated hospitalization in children in 2012/2013.Epidemiology and infection · 2025Article
- Effectiveness of Influenza Vaccines and Duration of Protection Against Hospitalisation in England: 2022/2023 and 2023/2024 Seasons.Influenza and other respiratory viruses · 2025Article
- The Influenza Season: A Comparative Study of Admission Rates and Influenza Vaccinations in the Kingdom of Bahrain.Cureus · 2025Article
- Influenza vaccine based on AS03-adjuvanted chimeric HA induces long-lived stalk-specific plasma cells in bone marrow and lymph nodes of nonhuman primates.Nature immunology · 2025Article
- Influenza Vaccine Effectiveness Against Hospitalizations and Emergency Department or Urgent Care Encounters for Children, Adolescents, and Adults During the 2023-2024 Season, United States.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Article
- Early, adjuvant-responsive epigenetic programs in B cells imprint subsequent plasma cell survival and the duration of humoral immunity.bioRxiv : the preprint server for biology · 2025Article
- Influenza Vaccine Effectiveness in Australia During 2017-2019.Influenza and other respiratory viruses · 2025Article
14 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundIn the United States, it is recommended that healthcare providers offer influenza vaccination by October, if possible. However, if the vaccine's effectiveness soon begins to wane, the optimal time for vaccination may be somewhat later. We examined whether the effectiveness of influenza vaccine wanes during the influenza season with increasing time since vaccination.
methodsWe identified persons who were vaccinated with inactivated influenza vaccine from 1 September 2010 to 31 March 2017 and who were subsequently tested for influenza and respiratory syncytial virus (RSV) by a polymerase chain reaction test. Test-confirmed influenza was the primary outcome and days-since-vaccination was the predictor of interest in conditional logistic regression. Models were adjusted for age and conditioned on calendar day and geographic area. RSV was used as a negative-control outcome.
resultsCompared with persons vaccinated 14 to 41 days prior to being tested, persons vaccinated 42 to 69 days prior to being tested had 1.32 (95% confidence interval [CI], 1.11 to 1.55) times the odds of testing positive for any influenza. The odds ratio (OR) increased linearly by approximately 16% for each additional 28 days since vaccination. The OR was 2.06 (95% CI, 1.69 to 2.51) for persons vaccinated 154 or more days prior to being tested. No evidence of waning was found for RSV.
conclusionsOur results suggest that effectiveness of inactivated influenza vaccine wanes during the course of a single season. These results may lead to reconsideration of the optimal timing of seasonal influenza vaccination.
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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.