Dr Cristyn Davies is a Senior Research Fellow in the Specialty of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney Children’s Hospital Westmead Clinical School. Cristyn is President of the Australian Association for Adolescent Health, co-convenor of the Child and Youth Health Special Interest Group of the Public Health Association of Australia, and a member of the University of Sydney’s Infectious Diseases Institute. Cristyn has expertise in vaccination delivery systems, vaccination for young people, HPV vaccination, COVID-19 vaccination, sexual and reproductive health, and knowledge translation and implementation science.