Join Michael Lester from Radio Northern Beaches as he interviews Professor Raina MacIntyre, a leading epidemiologist and biosecurity expert from UNSW and the Kirby Institute. Raina discusses her concerns about Australia's declining vaccination rates post-COVID-19, the importance of vaccines in safeguarding public health, and the threats posed by anti-vaccine sentiments. Based on her new book, Vaccine Nation: Science, Reason, and the Threat to 200 Years of Progress (2025), she explores the remarkable history of vaccines, the challenges of public trust, and strategies to prepare for future pandemics.