Professor Torrens has extensive experience in the addiction field and current serves as the Head of the Addiction Programme at the Institute of Neuropsychiatry and Addictions-Parc de Salut Mar, Barcelona. Additionally, she is also a Member of the Clinical Commission of the National Plan on Drugs, Spanish Ministry of Health.

Susan is a Research Fellow at the Australian Research Centre in Sex, Health and Society at La Trobe University in Melbourne, Australia. Her research focus is on HIV and hepatitis C among vulnerable and marginalised communities in Australia and the Asia Pacific region. She is also a public health lecturer.

Marie Jauffret-Roustide is a Sociologist, Research Fellow at Inserm in France. Her research focuses mainly on harm reduction policies including HCV, migration, and gender issues in drug policies as well as patient groups' involvement. She has coordinated several evaluative intervention studies among vulnerable populations, using a community-based research approach.

George Kalamitsis is Chair of Hellenic Liver Patients Association "Prometheus", since 2012. He is also a member of the Committee monitoring the Greek Action Plan for hepatitis C, as well as President of the Committee Protecting the Rights of Recipients of Health Services under the Greek Ministry of Health

Adam Palayew is a young researcher with training from McGill University in Epidemiology and Biostatistics. He has a wide range of interest from cutting-edge statistical methods to patient advocacy and reducing the gap between policy and practice. His main research focuses on social determinants of health around HIV/HCV co-infection.

Dr. Schackman is a Professor of Healthcare Policy & Research at Weill Cornell Medicine and Director of the Center for Health Economics of Treatment Interventions for Substance Use Disorder, HCV, and HIV (CHERISH). He conducts economic evaluations alongside clinical trials and cohort studies, cost-effectiveness simulation modeling, and implementation science studies.