David Harley is a zoologist, general practitioner, epidemiologist and Public Health Physician. Until January 2021 he was director of the Queensland Centre for Intellectual and Developmental Disability. January to June 2021 he was a senior staff specialist in public health medicine with Queensland Health. He continues as a Public Health physician at Metro North and West Moreton Public Health Units. He has a major interest in infectious disease epidemiology. Ross River virus, Australia’s most important climate sensitive arbovirus, is a long standing interest. He is lead author on the most comprehensive review of the virus, its ecology and clinical manifestations, a large mosquito trapping study for Ross River virus isolation and an important inception cohort study of disease natural history. He has also published on tuberculosis, Adenovirus, meningococcus, dengue and malaria.