Professor Giles is an adult infectious diseases physician with clinical appointments at the Royal Women’s Hospital, Alfred Health and Monash Health in Melbourne. She also holds academic appointments in the Department of Obstetrics and Gynaecology, Monash University and in the Department of Infectious Diseases, University of Melbourne.

Professor Giles’ clinical and research focus is on infections in pregnancy and maternal immunisation. She is Director of the Infections in Pregnancy service at Monash Health and has established three perinatal infectious diseases clinics embedded within antenatal services. Her research in maternal immunisation has covered uptake, safety, access, cost effectiveness and non-specific protective effects on preterm birth. She is currently Deputy Chair of the Australian Technical Advisory Group on Immunisation and a sitting member on the Technical Advisory Group on GBS vaccines to the World Health Organization.