Professor WD Francois Venter, MD, FCP, PhD is the Divisional Head of Ezintsha at the University of the Witwatersrand, Johannesburg, where he received most of his training. He has an active interest in public sector access to HIV services, and his work involves health systems research that directly translates into national programmes, most recently involving dolutegravir and TAF. He leads multiple antiretroviral treatment optimisation studies and is currently working on new first and second line antiretroviral options, patient linkage-to-care interventions, and self-testing projects. He has led large PEPFAR-funded HIV programmes in South Africa, focusing on different populations such as men, women, children, young people, truckers, sex workers and LGBTI. For the last 20 years, he has been an advisor to bodies such as the South African government, Southern African HIV Clinicians Society, UNAIDS and WHO, including contributing to international, regional and national HIV guidelines. He has been involved in several human rights cases involving HIV within the Southern African region and has an active interest in medical ethics.

Claudia Estcourt is Professor of Sexual Health & HIV at Glasgow Caledonian University and Honorary Professor at UCL, and a consultant physician in Sexual Health & HIV at NHS Greater Glasgow & Clyde, UK and Central & North West London NHS Trust. She is specialist adviser to the Chief Medical Officer of Scotland. Her research addresses three major public health priorities: 1) Self-managed, digital healthcare, focussing on development and evaluation of complex online clinical care pathways within sexual health & HIV medicine, 2) HIV PrEP public health programmes, clinical service development, evaluation and monitoring; 3) Preventing transmission of STIs & reducing undiagnosed HIV by increasing effectiveness of partner notification strategies, developing tailored interventions for those at highest risk, focussing on both young heterosexuals & men who have sex with men (lustrum.org.uk).

Dr Christopher Bourne is • Head of NSW STI Programs Unit at the Centre for Population Health, NSW Health; • Senior Staff Specialist at Sydney Sexual Health Centre, and • Conjoint Associate Professor at the Kirby Institute, Sexual Health Program, UNSW His interests include population health and health service implementation, research and evaluation related to STI and HIV strategy with a focus on priority populations and settings. He has worked in sexual health medicine for 30 years in urban, rural and remote Australian settings; provided consultancies in South East Asia and written and trained healthcare workers how to apply sexual health care guidelines in clinical practice.