The Queensland government will make all visitors Adelaide undergo mandatory 14-day quarantine after a coronavirus outbreak in the city.
Premier Annastacia Palaszczuk and Chief Health Officer Jeannette Young will place restrictions on arrivals from Adelaide from 11.59pm on Monday after labelling the South Australian capital as a virus hotspot.
"This cluster outbreak is of concern, it's not like the cost of outbreaks we've had in Queensland, but we do really hope that Adelaide does get on top of that very, very quickly," she told reporters on Monday.
Dr Young urged anyone who had arrived in Queensland from Adelaide since last Monday to immediately self-isolate.
"Now this is important while we work out what this means, it's a very rapid increase in cases from four to 17 (cases)," she said.
The Adelaide cluster, linked to a worker at a quarantine hotel, has now spread to 17 people in the city.
The worker became infected and spread the virus to other family members.
Of the cases detected so far, 15 are thought to involve members of the one extended family.
Deputy Premier Steven Miles said while it was impossible to completely eliminate COVID-19 with people returning to Australia from overseas, the goal was to contain the virus in hotel quarantine.
"From the detail I have available at the moment, it does appear that these cases have come out of hotel quarantine and that's that's very concerning - that's where the Victorian outbreak started," he told reporters.
