David applies his expertise in epidemiology and health economics to analyse large datasets and create models that address global infectious disease challenges. His research on HIV and viral hepatitis has been cited in clinical guidelines in Australia and internationally, improving the lives of people affected by these infections. Recently, his work has focused on preventing, detecting, and managing respiratory viruses and antimicrobial resistance. His research team uses data from surveillance systems, cohort studies, and clinical trials to study how respiratory viruses spread and evaluate the effectiveness and cost-effectiveness of new public health measures. By collaborating with clinical, laboratory, and public health experts, David's goal is to create a world where respiratory infections are rare, rapidly diagnosed, and easily treated.