World's Best Scientists 2026 revealed!
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Social Sciences and Humanities
UK
2026

D-Index & Metrics

Social Sciences and Humanities

D-Index
74
Citations
16523
World Ranking
603
National Ranking
109

Research.com Recognitions

  • 2026 - Research.com Social Sciences and Humanities in United Kingdom Leader Award

Overview

Simon Gregson is affiliated with Imperial College London in the United Kingdom. Their research focuses primarily on Medicine and Health Professions, with extensive work in Infectious Diseases, General Health Professions, Epidemiology, Sociology and Political Science, and Virology.

The scientist's research covers several key topics, including:

  • HIV/AIDS Research and Interventions
  • Adolescent Sexual and Reproductive Health
  • HIV, Drug Use, Sexual Risk
  • Sex work and related issues
  • HIV Research and Treatment
  • HIV/AIDS Impact and Responses
  • HIV-related health complications and treatments

Simon Gregson has contributed to multiple peer-reviewed papers in recent years. Selected recent publications include:

  • Age patterns of HIV incidence in eastern and southern Africa: a modelling analysis of observational population-based cohort studies, 2021, The Lancet HIV
  • Association between HIV infection and hypertension: a global systematic review and meta-analysis of cross-sectional studies, 2021, BMC Medicine
  • Relationships between changes in HIV risk perception and condom use in East Zimbabwe 2003-2013: population-based longitudinal analyses, 2020, BMC Public Health
  • Improving access to pre-exposure prophylaxis for adolescent girls and young women: recommendations from healthcare providers in eastern Zimbabwe, 2022, BMC Infectious Diseases
  • How gender norms and 'good girl' notions prevent adolescent girls and young women from engaging with PrEP: qualitative insights from Zimbabwe, 2022, BMC Women's Health

The most frequent publication venues for Simon Gregson's work are:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • BMC Women's Health
  • PLOS Global Public Health
  • PLoS ONE
  • The Lancet HIV

Frequent co-authors include Constance Nyamukapa, Rufurwokuda Maswera, Louisa Moorhouse, Tawanda Dadirai, and Morten Skovdal. This indicates substantial collaborative research efforts.

In addition to journal articles, Simon Gregson has contributed to book publications, including one titled Remaking HIV Prevention in the 21st Century, published in 2021 by Springer International Publishing.

Best Publications

  • Sexual mixing patterns and sex-differentials in teenage exposure to HIV infection in rural Zimbabwe.

    Simon Gregson;Constance A. Nyamukapa;Geoffrey P. Garnett;Peter R. Mason

  • Technologies for global health

    Peter Howitt;Ara Darzi;Guang-Zhong Yang;Hutan Ashrafian

  • HIV decline associated with behavior change in eastern Zimbabwe.

    Simon Gregson;Simon Gregson;Simon Gregson;Geoffrey P. Garnett;Geoffrey P. Garnett;Geoffrey P. Garnett;Constance A. Nyamukapa;Constance A. Nyamukapa;Constance A. Nyamukapa;Timothy B. Hallett;Timothy B. Hallett;Timothy B. Hallett

  • Reductions in risk behaviour provide the most consistent explanation for declining HIV-1 prevalence in Uganda.

    A. H. D. Kilian;S. Gregson;B. Ndyanabangi;K. Walusaga

  • Masculinity as a barrier to men's use of HIV services in Zimbabwe.

    Morten Skovdal;Catherine Campbell;Claudius Madanhire;Zivai Mupambireyi

  • Voluntary counselling and testing: uptake, impact on sexual behaviour, and HIV incidence in a rural Zimbabwean cohort

    Lorraine Sherr;Ben Lopman;Memory Kakowa;Sabada Dube

  • Extended family's and women's roles in safeguarding orphans' education in AIDS-afflicted rural Zimbabwe.

    Constance Nyamukapa;Simon Gregson;Simon Gregson

  • Effects of unconditional and conditional cash transfers on child health and development in Zimbabwe: a cluster-randomised trial.

    Laura Robertson;Phyllis Mushati;Jeffrey W Eaton;Lovemore Dumba

  • Measuring the impact of HIV on fertility in Africa.

    Basia W. Zaba;Simon Gregson

  • Scale-free networks and sexually transmitted diseases: a description of observed patterns of sexual contacts in Britain and Zimbabwe.

    Anne Schneeberger;Catherine H Mercer;Simon A J Gregson;Neil M Ferguson

  • HIV-Associated Orphanhood and Children’s Psychosocial Distress: Theoretical Framework Tested With Data From Zimbabwe

    Constance A. Nyamukapa;Simon Gregson;Ben Lopman;Suzue Saito

  • Methods to reduce social desirability bias in sex surveys in low-development settings: experience in Zimbabwe.

    Simon Gregson;Tom Zhuwau;Joshua Ndlovu;Constance A. Nyamukapa

  • Declines in HIV prevalence can be associated with changing sexual behaviour in Uganda, urban Kenya, Zimbabwe, and urban Haiti

    T. B. Hallett;J. Aberle-Grasse;G. Bello;L. M. Boulos

  • Orphan prevalence and extended family care in a peri-urban community in Zimbabwe

    Foster G;Shakespeare R;Chinemana F;Jackson H

  • HIV infection and reproductive health in teenage women orphaned and made vulnerable by AIDS in Zimbabwe.

    Simon Gregson;C.A. Nyamukapa;G.P. Garnett;M. Wambe

  • School education and HIV control in sub‐Saharan Africa: from discord to harmony?

    Simon Gregson;Simon Gregson;Heather Waddell;Stephen Chandiwana

  • A surprising prevention success: why did the HIV epidemic decline in Zimbabwe?

    Daniel T. Halperin;Owen Mugurungi;Timothy B. Hallett;Backson Muchini

  • Is there evidence for behaviour change in response to AIDS in rural Zimbabwe

    Simon Gregson;Tom Zhuwau;Roy M. Anderson;Stephen K. Chandiwana

  • From affected to infected? Orphanhood and HIV risk among female adolescents in urban Zimbabwe.

    Isolde J Birdthistle;Sian Floyd;Auxillia Machingura;Netsai Mudziwapasi

  • Community group participation: can it help young women to avoid HIV? An exploratory study of social capital and school education in rural Zimbabwe.

    Simon Gregson;Simon Gregson;Nicola Terceira;Phyllis Mushati;Constance Nyamukapa

Frequent Co-Authors

Constance Nyamukapa
Constance Nyamukapa Imperial College London
Morten Skovdal
Morten Skovdal University of Copenhagen
Catherine Campbell
Catherine Campbell London School of Economics and Political Science
Lorraine Sherr
Lorraine Sherr University College London
Mark Urassa
Mark Urassa Medical Research Council
Christl A. Donnelly
Christl A. Donnelly University of Oxford
Nicholas C. Grassly
Nicholas C. Grassly Imperial College London
James R Hargreaves
James R Hargreaves London School of Hygiene & Tropical Medicine
Simon Cauchemez
Simon Cauchemez Institut Pasteur
Marie-Louise Newell
Marie-Louise Newell University of Southampton

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