High vaccination rate ‘certainly changes the picture’

Deakin University Chair of Epidemiology Professor Catherine Bennett says a vaccination rate of 80 per cent or over "certainly changes the picture".

"We’ve seen that even in countries where they haven’t been able to really control the wave, and it’s come – the Delta wave has come – just as they were relaxing," she told Sky News host Chris Kenny.

"We know very well what happens in places like the UK or the US where they haven’t really brought them under control."