COVID's deadly 'payback period'

Australian hospitals have never been so swamped by COVID-19 patients. We're heading for another peak in infections, and the daily death toll has never been so high, while worldwide we appear to be faring worse than just about anywhere else. But why? And how many more waves will Australia need to endure? Today, epidemiologist Professor Tony Blakely on why Australia's early success at keeping the virus at bay now seems to be working against us. Featured: Professor Tony Blakely, epidemiologist, School of Population and Global Health, University of Melbourne