Sarah Larney’s work focuses on the epidemiology and prevention of drug-related harms such as hepatitis C infection, injecting-related injuries and diseases (e.g. abscesses), excess mortality, and contact with the criminal legal system. She is developing a program of research on aging in people who use drugs. Current projects include: a rapid assessment of the impacts of COVID-19 on people who inject drugs a rapid systematic review of the effects of “Big Events” such as natural disasters, economic recessions and pandemics on people who use drugs and delivery of harm reduction and drug treatment services analysis of mortality in the Hepco cohort of people who inject drugs. This is a long-standing prospective cohort study with linkage to administrative deaths data. We aim to assess patterns and changes over time in causes of death, with a particular focus on understanding the influence of unstable housing on mortality outcomes.