Australia has reported no new locally transmitted COVID-19 infection for the first time in five months.
In Melbourne, which had the highest number of COVID-19 infections in the country, people were enjoying the first weekend of restaurants, cafes and pubs reopening to walk in customers.
Melbourne has one mystery case without a known source. There are 61 COVID-19 active cases left across the state, down from 70 on Saturday.
State Deputy Premier James Merlino hailed Sunday's zero figures as "another great day for victoria," but urged caution ahead of Australia's most prestigious horse race on Tuesday, the Melbourne Cup, known as the Australia's most famous annual Thoroughbred horse race.
The race attracts crowds of more than 100,000 at Melbourne's Flemington rececourse, but this year it will be held without fans because of restrictions on public gatherings.
Chief Health Officer Bretton Sutton urged Victorians to enjoy the cup but to continue obeying guidance on mask-wearing and social distancing.
"The greta majority of Melburnians know what to do," Sutton said. "There will be a few who may be a bit liberal in their behavior."
Sutton said the new wave of infections in Europe showed how quickly the Coronavirus can reassert itself.
Western Australia state on Sunday recorded one new case of COVID-19, a woman who returned from overseas and is in hotel quarantine.