Dr Hannah G Davies is an Academic Clinical Lecturer in Public Health within the Institute for Global Health at University College London, with honorary appointments at the London School of Hygiene & Tropical Medicine, City St George’s, University of London, and the UK Health Security Agency. She is a clinician and researcher specialising in maternal and infant infectious diseases, vaccinology, maternal immunisation, neonatal infections, and vaccine safety surveillance. Her work focuses on improving maternal and newborn outcomes through epidemiology, clinical research, and public health, with particular interests in Group B Streptococcus and global health. She completed her PhD at St George’s, University of London, based on large maternal–infant cohort studies in Uganda, and has worked clinically and academically across the UK, Uganda, and Sierra Leone.