World's Best Scientists 2026 revealed!

D-Index & Metrics

Immunology

D-Index
46
Citations
8270
World Ranking
4618
National Ranking
395

Overview

Helen A. Fletcher is affiliated with the London School of Hygiene & Tropical Medicine in the United Kingdom. Their research primarily focuses on the field of Medicine, with significant work in several subfields including Epidemiology, Infectious Diseases, Immunology, Surgery, and Hepatology.

The main themes in their research include Tuberculosis Research and Epidemiology, Mycobacterium research and diagnosis, Immune responses and vaccinations, Immunodeficiency and Autoimmune Disorders, Pneumocystis jirovecii pneumonia detection and treatment, Infectious Diseases and Tuberculosis, and Global Public Health Policies and Epidemiology.

Frequent coauthors associated with Helen A. Fletcher include:

  • Rachel Tanner
  • Helen McShane
  • Hannah Painter
  • Iman Satti
  • Stephanie A. Harris

Helen A. Fletcher has published multiple papers across various scientific venues. Some notable recent papers are:

  • COVID-19 as a global challenge: towards an inclusive and sustainable future (2020), published in The Lancet Planetary Health
  • T cell assays differentiate clinical and subclinical SARS-CoV-2 infections from cross-reactive antiviral responses (2021), published in Nature Communications
  • Tools for Assessing the Protective Efficacy of TB Vaccines in Humans: in vitro Mycobacterial Growth Inhibition Predicts Outcome of in vivo Mycobacterial Infection (2020), published in Frontiers in Immunology
  • Human Immune Responses to Melioidosis and Cross-Reactivity to Low-Virulence Burkholderia Species, Thailand1 (2020), published in Emerging infectious diseases
  • A non-human primate in vitro functional assay for the early evaluation of TB vaccine candidates (2021), published in npj Vaccines

These papers cover a range of topics, including infectious disease challenges such as COVID-19 and tuberculosis, immune system responses, and vaccine efficacy assessments.

Helen A. Fletcher frequently publishes in the following scientific venues:

  • Frontiers in Immunology
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Nature Communications
  • F1000Research
  • Tuberculosis

Best Publications

  • Recombinant modified vaccinia virus Ankara expressing antigen 85A boosts BCG-primed and naturally acquired antimycobacterial immunity in humans.

    Helen McShane;Ansar A Pathan;Clare R Sander;Sheila M Keating

  • Upregulation of TGF-β, FOXP3, and CD4+CD25+ Regulatory T Cells Correlates with More Rapid Parasite Growth in Human Malaria Infection

    Michael Walther;Jon Eric Tongren;Laura Andrews;Daniel Korbel

  • Potent CD8+ T-Cell Immunogenicity in Humans of a Novel Heterosubtypic Influenza A Vaccine, MVA−NP+M1

    Tamara K. Berthoud;Matthew Hamill;Patrick J. Lillie;Lenias Hwenda

  • T-cell activation is an immune correlate of risk in BCG vaccinated infants

    Helen A. Fletcher;Helen A. Fletcher;Margaret A. Snowden;Bernard Landry;Wasima Rida

  • Recognition of Stage-Specific Mycobacterial Antigens Differentiates between Acute and Latent Infections with Mycobacterium tuberculosis

    Abebech Demissie;Eliane M. S. Leyten;Markos Abebe;Liya Wassie

  • Healthy individuals that control a latent infection with Mycobacterium tuberculosis express high levels of Th1 cytokines and the IL-4 antagonist IL-4delta2

    Abebech Demissie;Markos Abebe;Abraham Aseffa;Graham Rook

  • Safety and Immunogenicity of a New Tuberculosis Vaccine, MVA85A, in Healthy Adults in South Africa

    Tony Hawkridge;Thomas J. Scriba;Sebastian Gelderbloem;Erica Smit

  • COVID-19 as a global challenge: towards an inclusive and sustainable future.

    Helen Lambert;Jaideep Gupte;Helen Fletcher;Laura Hammond

  • Boosting BCG with MVA85A: the first candidate subunit vaccine for tuberculosis in clinical trials

    Helen McShane;Ansar A. Pathan;Clare R. Sander;Nilukshi Preethika Goonetilleke

  • Widespread occurrence of Mycobacterium tuberculosis DNA from 18th–19th century Hungarians

    Helen A Fletcher;Helen D Donoghue;John Holton;Ildikó Pap

  • Serial QuantiFERON testing and tuberculosis disease risk among young children: an observational cohort study

    Jason R Andrews;Elisa Nemes;Michele Tameris;Bernard S Landry

  • Human Immunology of Tuberculosis.

    Thomas J. Scriba;Anna K. Coussens;Helen A. Fletcher

  • Association of Human Antibodies to Arabinomannan With Enhanced Mycobacterial Opsonophagocytosis and Intracellular Growth Reduction.

    Tingting Chen;Caroline Blanc;Anke Z. Eder;Rafael Prados-Rosales

  • Ratio of Monocytes to Lymphocytes in Peripheral Blood Identifies Adults at Risk of Incident Tuberculosis Among HIV-Infected Adults Initiating Antiretroviral Therapy

    Vivek. Naranbhai;Adrian V. S. Hill;Adrian V. S. Hill;Salim Safurdeen. Abdool Karim;Kogieleum. Naidoo

  • Progress and challenges in TB vaccine development

    Gerald Voss;Danilo Casimiro;Danilo Casimiro;Olivier Neyrolles;Ann Williams

  • Perspectives on Advances in Tuberculosis Diagnostics, Drugs, and Vaccines

    Marco Schito;Giovanni Battista Migliori;Helen A. Fletcher;Ruth McNerney

  • A Helicopter Perspective on TB Biomarkers: Pathway and Process Based Analysis of Gene Expression Data Provides New Insight into TB Pathogenesis.

    Simone A. Joosten;Helen A. Fletcher;Tom H. M. Ottenhoff

  • T cell assays differentiate clinical and subclinical SARS-CoV-2 infections from cross-reactive antiviral responses.

    A Ogbe;B Kronsteiner;D T Skelly;M Pace

  • Molecular analysis of Mycobacterium tuberculosis DNA from a family of 18th century Hungarians.

    Helen A. Fletcher;Helen D. Donoghue;G. Michael Taylor;Adri G. M. van der Zanden

  • Sensitivity of IFN-γ Release Assay to Detect Latent Tuberculosis Infection Is Retained in HIV-Infected Patients but Dependent on HIV/AIDS Progression

    Farba Karam;Fatou Mbow;Helen Fletcher;Cheikh S. Senghor

  • Immunological outcomes of new tuberculosis vaccine trials: WHO panel recommendations

    Willem A Hanekom;Hazel M Dockrell;Tom H. M Ottenhoff;T. Mark Doherty

Frequent Co-Authors

Helen McShane
Helen McShane University of Oxford
Adrian V. S. Hill
Adrian V. S. Hill University of Oxford
Susanna Dunachie
Susanna Dunachie University of Oxford
Thomas J. Scriba
Thomas J. Scriba University of Cape Town
Vivek Naranbhai
Vivek Naranbhai Monash University
Willem A. Hanekom
Willem A. Hanekom University College London
Robert U. Newton
Robert U. Newton Edith Cowan University
Ian D. Poulton
Ian D. Poulton University of Oxford
Hazel M. Dockrell
Hazel M. Dockrell London School of Hygiene & Tropical Medicine
Philip Bejon
Philip Bejon University of Oxford

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For those interested in immunology, exploring related healthcare degrees can open diverse career opportunities. Many students begin with foundational nursing qualifications, like Licensed Practical Nurse (LPN) programs. If you’re looking for quick entry points, consider lpn programs with easiest admission requirements, which can streamline your start in patient care.

Advancing in nursing often involves pursuing Nurse Practitioner degrees. Some programs are designed to be more accessible and flexible, making it easier to gain advanced practice skills. Check out easiest nurse practitioner degree programs to find options that balance rigor and convenience.

For those passionate about mental health within immunology contexts, specialized training is available. Psychiatric Mental Health Nurse Practitioner (PMHNP) programs provide critical expertise in managing mental health disorders. You can explore the best online psychiatric mental health nurse practitioner programs that offer strong clinical placements to enhance practical experience.

Cost is often a significant consideration. Fortunately, there are affordable pathways, including some of the cheapest online pmhnp programs, which ensure high-quality education without the heavy financial burden.

Best Scientists Citing Helen A. Fletcher

Trending Scientists

Recently Published Articles