Lockdown Radio - Covid Numbers Heading The Wrong Way In Sydney And Melbourne by beyond-infinity-sci-tech published on 2021-08-16T06:43:47Z Live-to-air radio interview with Piers Cunningham and Brendon Telfer. While Europe enjoys summer holidays, Australia's biggest cities are under wraps, with lockdowns extended as case numbers rise sharply in Sydney and remain stubbornly high for greater Melbourne. We discuss the limits of what lockdowns can achieve, vaccine certificates and how Oxford researchers are questioning the very notion of herd immunity. Genre News & Politics