David is a consultant paediatrician at the Children’s Hospital at Westmead and a Clinical Professor in Paediatric Infectious Diseases at the University of Sydney. He was on all of Australia’s national immunisation committees for 25 years. David has a passionate commitment to social justice and works with Aboriginal people and asylum seeker groups. He is Editor-in-Chief of the Journal of Paediatrics and Child Health and teaches and writes extensively about bioethics. David has published over 500 papers and 10 books on paediatric infectious diseases, neonatal infections, immunisations and ethics.