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Open research questions in Influenza Virus Research Studies

169 unresolved questions extracted from the limitations and future-work sections of 877 Influenza Virus Research Studies papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • The study faces challenges in terms of heterogeneity among the included studies. The study also faces challenges in terms of publication bias. The study highlights the need for improved vaccination policies and strategies to increase vaccination rates among health care workers in China.

    Prevalence and factors influencing influenza vaccination among health care workers in China: a systematic review and meta-analysis · 2026 · DOI

  • The current vaccination rate in China is still not up to the standard. There are significant differences in different regions and medical institutions. The study aims to address the gap in understanding the influenza vaccination rate and influencing factors among health care workers in China.

    Prevalence and factors influencing influenza vaccination among health care workers in China: a systematic review and meta-analysis · 2026 · DOI

  • investigating the relationship between innate immune responsiveness and symptomatic disease, - exploring potential targets for therapeutic intervention, - examining the role of inflammatory signals in modulating immune responses

    Innate immune responsiveness predicts enhanced cellular immunity and symptomatic disease after controlled human influenza infection · 2026 · DOI

  • The paper identifies a gap in understanding the early immune factors associated with clinical outcome in controlled human influenza infection. It also highlights the need for further research on the relationship between innate immune responsiveness and symptomatic disease. The study notes that the mechanisms of influenza infection are not fully understood, particularly with regards to the role of innate immune responses.

    Innate immune responsiveness predicts enhanced cellular immunity and symptomatic disease after controlled human influenza infection · 2026 · DOI

  • The antigenic mismatch between stockpiled vaccines and the strain that causes a future outbreak. The accelerated antigenic drift and shift observed in H5Nx viruses. The need for integrated early warning systems to detect abnormal patterns and emerging threats.

    Highly pathogenic avian influenza: pandemic preparedness for a scenario of high lethality with no vaccines · 2025 · DOI

  • Accelerating vaccine and drug development, especially universal vaccines, - Developing next-generation vaccine platforms designed to provide broad, long-lasting protection against a wide spectrum of HPAI virus subtypes and strains

    Highly pathogenic avian influenza: pandemic preparedness for a scenario of high lethality with no vaccines · 2025 · DOI

  • Our study strengthens the evidence by including comprehensive safety endpoints and highlighting specific AEs that warrant further investigation in future trials and pharmacovigilance efforts.

    Immunogenicity and safety of seasonal influenza vaccine co-administered with other vaccines: a systematic review and meta-analysis · 2026 · DOI

  • Despite its high propensity for host switching, the evolutionary mechanisms underlying influenza host adaptation remain unclear.

    Host type governs influenza evolutionary strategy across reservoir and spillover hosts · 2026 · DOI

  • Thus, developing alternative bovine models that maintain biological relevance while reducing operational complexity is warranted.

    Pathogenesis of H5N1 Clade 2.3.4.4b in dry Jersey cows following intramammary inoculation shows within-host compartmentalization · 2026 · DOI

  • Although more than 1000 herds have been infected, bovine H5N1 influenza virus pathogenesis, transmission, and evolution in dairy cattle remains not well characterized.

    Pathogenesis of H5N1 Clade 2.3.4.4b in dry Jersey cows following intramammary inoculation shows within-host compartmentalization · 2026 · DOI

  • While the effects of highly occupied glycosylated sites of hemagglutinin on A(H3N2) influenza A virus biology are well studied, there is limited information on the functional impact of the low-occupancy glycosylation sites on the viral hemagglutinin.

    N-linked glycosylation sites with low occupancy support sustained circulation of the A(H3N2) influenza A virus in the human population · 2026 · DOI

  • How the resultant spatial heterogeneity shapes within-host genetic diversity and viral evolutionary pathways is poorly understood.

    Dispersal of influenza virus populations within the respiratory tract shapes their evolutionary potential · 2025 · DOI

  • While overall trends aligned with publicly available data, absolute counts may be under-reported within Epic due to incomplete documentation of vaccine administrations outside of Epic-affiliated systems.

    Vaccine fatigue and influenza vaccination trends across Pre-, Peri-, and Post-COVID-19 periods in the United States using epic’s cosmos database · 2025 · DOI

  • As a result, vaccine efficacy can vary widely from one year to the next, and the wild-type antigens in the seasonal vaccine need to be updated frequently to stay current with the ever-changing viral landscape.

    H3 hemagglutinin proteins optimized for 2018 to 2022 elicit neutralizing antibodies across panels of modern influenza A(H3N2) viruses · 2025 · DOI

  • Despite pigs being an important species in influenza A virus (IAV) epidemiology and a reliable preclinical model for human IAV infections, many aspects of the porcine pulmonary immune system remain poorly understood.

    Single-cell analysis of pig lung leukocytes and their response to influenza infection and oseltamivir therapy · 2025 · DOI

  • While systemic hypoxemia is a feature of severe influenza infection, the impact of tissue level hypoxia on lung damage and repair during an infection have not been explored.

    Exploring the impact of acute lung hypoxia on CD8 T cell phenotypes following severe influenza infection 3979 · 2025 · DOI

  • Novel vaccination strategies are under development, but mucosal immunity, which has been shown to offer increased breadth of protection, is understudied, in part due to challenges in measuring mucosal immune responses.

    Engineering recombinant ferret IgA against influenza viruses and coronaviruses for reagent validation and musocal immunity assessment 4743 · 2025 · DOI

  • However, limited studies have directly compared how different adjuvants might influence immune responses elicited under such dose-sparing regimens.

    Differential effects of adjuvants on shaping unique B cell responses in a dose-sparing seasonal influenza vaccine 4246 · 2025 · DOI

  • Our results indicate a high disease burden due to seasonal influenza in Germany, indicating further research into complication rates, underestimation, and intervention programs for vulnerable populations, e.

    Measuring the disease burden of seasonal influenza in Germany 2015 - 2020 using the incidence-based disability-adjusted life years (DALYs) · 2025 · DOI

  • For paediatric patients at high risk of severe influenza, the readmission and the associated risk factors remain unclear.

    Risk factors for re-hospitalization within 90 days of discharge for severe influenza in children · 2025 · DOI

  • Due to limited surveillance, influenza dynamics in Namibia remain poorly understood.

    Molecular surveillance of influenza A and B in namibia: seasonal patterns and clinical correlates (2021–2023) · 2025 · DOI

  • BACKGROUND: Non-pharmaceutical interventions (NPIs) are critical for influenza control and prevention, however, the data about such interventions are insufficient among students in grades below middle school.

    Non-pharmaceutical interventions (NPIs) to control influenza spread among children in primary school and kindergarten: class-suspension or symptom-based isolation? · 2025 · DOI

  • Currently, there's limited research reporting on the protective effect of influenza vaccination against recurrent stroke in elderly stroke survivors.

    Influenza vaccination and ischemic stroke risk reduction in elderly stroke survivors: a retrospective cohort study with negative control validation · 2025 · DOI

  • Abstract Background Quantitative evidence on the impact of meteorological factors on influenza transmissibility across different virus types/subtypes is scarce, and no previous studies have reported the effect of hourly temperature variability (HTV) on influenza transmissibility.

    Effects of meteorological factors on influenza transmissibility by virus type/subtype · 2024 · DOI

  • While the efficacy and safety of Baloxavir Marboxil have been thoroughly characterized across an extensive clinical trial, studies on the effectiveness of Baloxavir Marboxil in a real-world setting are still scarce.

    Real-world effectiveness and safety of Baloxavir Marboxil or Oseltamivir in outpatients with uncomplicated influenza A: an ambispective, observational, multi-center study · 2024 · DOI

Most-cited papers in Influenza Virus Research Studies

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169 open questions have been extracted from the limitations and future-work passages of 877 Influenza Virus Research Studies papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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