Alexandra Calmy obtained her medical diploma in 1994 and was trained in internal medicine and in Infectious diseases; she completed a PhD in clinical research in 2009 in Sydney, Australia. She was nominated Associate Professor in 2014 and Full Professor in 2021, and is head of the HIV/AIDS Unit (Division of Infectious Diseases) of the University Hospitals of Geneva. Professor Calmy’s research interest focuses on public health and humanitarian response to HIV/AIDS, specifically the provision of antiretroviral therapy and management of side effects in resource limited settings. She worked with Médecins Sans Frontières since 1996 and has subsequently supported MSF’s HIV/AIDS work for more than 10 years. She is a member of the WHO working groups on the writing and the implementation of guidelines related to the treatment of HIV in developing countries since 2001, co-lead of CSS13 committee at the “Agence National de Recherche sur le SIDA – maladies émergentes” (ANRS-MIE), member of the scientific board of the Swiss HIV Study Cohort (SHCS). Since 2020, she was involved in the COVID-19 response at a national level (co-chair of the clinical group of the Swiss National COVID-19 Science Task Force), and more recently, she participated to the coordination of care and treatment of patients suffering from a Monkeypox infection.