Welcome to the 4th episode of the 2023 BMJ Sexually Transmitted Infections Podcast Series. This year the International AIDS Society Conference was held for the first time in Brisbane Australia in July 2023. It was wonderful to learn about many new research findings, community perspectives and to connect with old friends and make new ones. Today we will provide you with some of the many clinical, vaccine and policy research highlights of this conference and share our subjective perspectives. We were joined by: Dr Ming Lee, a sexual health & HIV physician and UK MRC Clinical Research Training Fellow at Imperial College London, London, UK, Prof Damian Purcell, Head of the Molecular Virology Laboratory in the Department of Microbiology and Immunology at the Peter Doherty Institute, University of Melbourne, Melbourne, Australia, Dr Meg Doherty, Director of Global HIV, Hepatitis and Sexually Transmitted Infection Programmes at World Health Organization, Heath Quarter. Hosted by: Dr Fabiola Martin, the BMJ STI Podcast editor and Sexual Health Specialist based in Australia and lecturer at School of Public Health at University of Queensland.