ArticlemBio2018
Evaluation of Preexisting Anti-Hemagglutinin Stalk Antibody as a Correlate of Protection in a Healthy Volunteer Challenge with Influenza A/H1N1pdm Virus.
Article in mBio, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 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
76 citing papers in PubMed, 95 citations in OpenAlex.
- Anti-neuraminidase and anti-hemagglutinin stalk responses to different influenza a(H7N9) vaccine regimens.Vaccine · 2025Trial
- Hemagglutinin Stalk-Specific Fc-Mediated Functions Are Associated With Protection Against Influenza Illness After Seasonal Influenza Vaccination.The Journal of infectious diseases · 2024Trial
- Safety and Efficacy of CR6261 in an Influenza A H1N1 Healthy Human Challenge Model.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021Trial
- Landscape of coordinated immune responses to H1N1 challenge in humans.The Journal of clinical investigation · 2020Trial
- Minimal transmission in an influenza A (H3N2) human challenge-transmission model within a controlled exposure environment.PLoS pathogens · 2020Trial
- Immunogenicity of chimeric haemagglutinin-based, universal influenza virus vaccine candidates: interim results of a randomised, placebo-controlled, phase 1 clinical trial.The Lancet. Infectious diseases · 2020Trial
- Assessing the Protective Potential of H1N1 Influenza Virus Hemagglutinin Head and Stalk Antibodies in Humans.Journal of virology · 2019Trial
- Trial
- Birth Cohort Effects in Adults Associated With Influenza A(H1N1)pdm09 Vaccine Effectiveness.The Journal of infectious diseases · 2026Article
- Influenza.Nature reviews. Disease primers · 2026Review
- Article
- Structural vaccinology expedites rational design of next-generation vaccines for influenza and respiratory syncytial virus.Virologica Sinica · 2026Review
- Anti-neuraminidase and anti-HA stalk antibodies reduce the susceptibility to and infectivity of influenza A/H3N2 virus.Nature communications · 2025Article
- Multiplex serology reveals age-specific immunodynamics of respiratory pathogens in the wake of the COVID-19 pandemic.Nature communications · 2025Article
- Pre-existing cross-reactive immunity to highly pathogenic avian influenza 2.3.4.4b A(H5N1) virus in the United States.Nature communications · 2025Article
- Molecular divergence and convergence of mammalian antibody responses to the influenza virus hemagglutinin stem.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Multiplex serology reveals age-specific immunodynamics of endemic respiratory pathogens in the wake of the COVID-19 pandemic.medRxiv : the preprint server for health sciences · 2025Article
- Influenza virus infection and aerosol shedding kinetics in a controlled human infection model.Journal of virology · 2024Article
- Inno4Vac Workshop Report Part 1: Controlled Human Influenza Virus Infection Model (CHIVIM) Strain Selection and Immune Assays for CHIVIM Studies, November 2021, MHRA, UK.Influenza and other respiratory viruses · 2024Review
- Defining the balance between optimal immunity and immunopathology in influenza virus infection.Nature reviews. Immunology · 2024Review
16 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
Influenza virus hemagglutinin (HA) surface glycoprotein is currently the primary target of licensed influenza vaccines. Recently, broadly reactive antibodies that target the stalk region of the HA have become a major focus of current novel vaccine development. These antibodies have been observed in humans after natural infection with influenza A virus, but the data are limited. Using samples and data from the uniquely controlled setting of an influenza A/H1N1 virus human challenge study of healthy volunteers, we performed a secondary analysis that for the first time explores the role of anti-HA stalk antibody as a human correlate of protection. An anti-HA stalk antibody enzyme-linked immunosorbent assay (ELISA) was performed on samples from 65 participants challenged with a 2009 H1N1pdm virus. Pre- and postchallenge anti-HA stalk titers were then correlated with multiple outcome measures to evaluate anti-HA stalk antibody titer as a correlate of protection. Anti-HA stalk antibody titers were present before challenge and rose in response to challenge in 64% of individuals. Those individuals with higher titers at baseline were less likely to develop shedding, but not less likely to develop symptoms. Similar to the hemagglutination inhibition (HAI) titer, the baseline anti-HA stalk antibody titer did not independently predict a decrease in the severity of influenza disease, while the antineuraminidase (neuraminidase inhibition [NAI]) titer did. As a correlate of protection, the naturally occurring anti-HA stalk antibody titer is predictive of a reduction of certain aspects of disease similar to HAI titer, but the NAI titer is the only identified correlate that is an independent predictor of a reduction of all assessed influenza clinical outcome measures.
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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.