Melbourne bracing for lockdown as Covid-19 cases climb

A new lockdown in Melbourne is all but inevitable - after 11 new cases of Covid-19 were discovered overnight. That brings the cluster to 26 total cases. The only question for health officials in Victoria is how long, and how strict this lockdown should be. Max Towle speaks to Covid-19 modeller Professor Shaun Hendy of Auckland University. He says now is the time for caution.