Can Australia's status quo beat Delta?

NSW authorities hope to crush Sydney's COVID outbreak using masks, social distancing and contact tracing. It's a plan that's worked well in the past, but is it really a match for the new, highly infectious Delta variant? And if it isn't, what needs to change? Today on The Signal, we ask how big a risk Delta might be to Australia's COVID strategy and, if we tried something different, what that would look like. Featured:  Dr Mary-Louise McLaws, Professor of Epidemiology, Hospital infection and infectious diseases control, University of New South Wales, and Member of World Health Organisation Health Emergencies Program Experts Advisory Panel for Infection Prevention and Control Preparedness, Readiness and Response to COVID-19