Who we are

Richard became Chief Executive of Terrence Higgins Trust in March 2023. He was previously the charity’s Campaigns Director and interim Head of Policy & Public Affairs.

Kian joined Terrence Higgins Trust in 2022 and leads on Digital and AI for the charity. He has previously held leadership roles with Crohn’s & Colitis UK, Diabetes UK, WellChild and Great Ormond Street Children’s Charity.

Amelia joined Terrence Higgins Trust in 2025 and manages the digital content across the organisation. Before this, she worked at the aidsmap charity for nine years, six of those as Websites & Digital Content Manager.

Roger joined aidsmap in 2008 and was Managing Editor from 2018 to 2024. As a freelancer, he now edits aidsmap’s news and conference coverage, as well as working on updates to About HIV pages. He is also a contributing science editor for TheBodyPro, a freelance journalist for The Lancet HIV, and a medical writer helping researchers prepare articles for peer-reviewed journals. He began working on HIV at Gay Men Fighting AIDS in the mid-1990s.

Ellis joined Terrence Higgins Trust in 2018 as Editor, working across the charity’s communications and HIV health information.

Keith joined the editorial team of the National AIDS Manual (NAM) in 1991, launched the aidsmap website in 1998 and was the Senior Editor of NAM and aidsmap until 2018. He now contributes news and conference reports as a freelancer.

Gus joined aidsmap's editorial team in 2009 and previously edited HIV Treatment Update and Preventing HIV. He retired from full-time work in 2023 and now contributes news and conference reports as a freelancer. He is also co-chair for Combination Prevention at the European AIDS Treatment Group.

Liz is a medical journalist specialising in HIV, hepatitis and cancer, and science editor for POZ magazine. She has contributed conference news reporting for aidsmap since 2004.

Edith is a science writer specialising in HIV and other infectious diseases. Her work focuses on equitable access to HIV testing, prevention, and treatment across Africa, examining how research translates into real-world impact for communities. She is particularly drawn to covering advanced HIV disease and the structural inequalities that drive the epidemic. Edith first joined the aidsmap Emerging Voices programme in 2021.

Zekerie holds a master’s degree in Virology and tutors both general and molecular biology. He has a vested interest in pandemic viruses and pathogen-host interactions. He is particularly interested in HIV cure research and HIV treatment, as well as environmental and sociocultural influences on the wellbeing of people living with HIV.

Dr Krishen Samuel is a queer scholar whose work centres on HIV, race, gender, sexuality, and intersectional identities. After completing a master’s degree in Global Public Health and Policy in London, he earned a PhD in Health Behaviour and Community Health Promotion as a Fulbright scholar in the United States. He is the Executive Director of EquiDiverse Synergy, a specialist consultancy embedding equity and inclusion and delivering tailored, data-driven research insights for organisations. He currently lives in Johannesburg, South Africa.

Abbey is a freelance Health Editor who works on aidsmap's About HIV pages. She previously worked full time at aidsmap as an HIV Information Editor. She has also worked as a Specialist Health Editor for Bupa, creating and reviewing patient information, and at Flo Health, writing about menstrual health.

Teresa Castro is a Portuguese social worker, harm reduction advocate and person who uses drugs. Over ten years, she has worked in case management, project coordination and advocacy, both nationally and internationally, focusing on living experience and the social determinants of health. She's active in organisations such as Youth RISE, EATG, IDPC and C-EHRN, pushing for structural answers to inequality and the real participation of communities.

Jonathan Diego Arancibia Coca combines his experience in grassroots HIV activism with anthropology and psychology to support civil society. He provides friendly technical assistance to help local organisations turn community needs into successful funding and advocacy tools. Based in Bolivia and fluent in Spanish, English, and Portuguese, Jonathan is dedicated to keeping health communication simple, warm, and close to the people.

Peter Endicott is a doctor providing sexual health, HIV and gender care in the UK.

Catherine Mwauyakufa is an award-winning freelance health science journalist from Zimbabwe. She lives openly with HIV and has documented the lived realities of people living with HIV in Zimbabwe. She is passionate about women and children in their diversity, and is the voluntary National Coordinator of the Women Vibes, a network of women and girls living with HIV in Zimbabwe.

Ibanomonde Ngema is a South African HIV advocate for young people living with and affected by HIV. She has spoken at major global platforms, including the International AIDS Society Conference and the United Nations General Assembly. She serves as South Africa’s Her Voice Fund Ambassador and UNFPA’s Regional Youth Advocate for East and Southern Africa and authored a paper in The Lancet.