Australia has been a relative success story but an outbreak in Melbourne is at a "critical stage", experts say.
Infections have surged in the past few weeks - there are now 482 active cases in the state of Victoria.
The numbers remain below Australia's March peak, but what's concerning now is that most cases are being spread locally rather than by people arriving from overseas.
In every other state, the virus has been dramatically slowed or eradicated. So what's gone wrong in Victoria?
July 03, BBC