The head of the Government's Covid-19 Public Health Advisory Group says the delta outbreak will ultimately speed up our reopening to the world. Epidemiologist Professor Sir David Skegg's group has submitted several reports to the government earlier this month, and has given advice on the Covid Protection Framework - or traffic light system - outlined on Friday. Sir David says the new system is a major milestone in the pandemic, and he believes New Zealand will swiftly become a highly vaccination nation, which alongside careful public health measures, will enable us to return to some sort of normal.