The government announced Brisbane's showgrounds could be used as an emergency hospital if the COVID-19 outbreak reaches the severe stage in Queensland.
Premier Annastacia Palaszczuk says the facilities at the Royal Queensland Show property followed by Brisbane's convention centre in South Bank would be used in a "worst case scenario".
She posted archival photos of Brisbane's RNA showgrounds during the Spanish flu pandemic.
"We're exploring similar options to treat coronavirus patients if there’s overflow from hospitals," she wrote on Twitter.
She said extra beds could also be set up at vacant hotels and convention centres.
A 75-year-old Queensland woman died of the coranavirus overnight, adding to the national death toll, which stands at 16.
A total of 31 COVID-19 cases have been confirmed in Queensland overnight, bringing the state's total to 656.
Three people are in intensive care.
A total of 77 travellers into Brisbane were placed in mandatory quarantine on Sunday morning, following measures that came into effect at midnight on Saturday.
The passengers will be held in the Novotel and Ibis hotels near Brisbane airport but other hotels are available if there is demand, Dr Young says.
All passengers arriving on international flights who are returning home or passing through will be held in the hotels for 14 days.
Holiday park to house SA virus patients
Meanwhile, South Australian authorities say a holiday park will be used to care for coronavirus patients to ease the burden on local hospitals.
Hospital at Home nurses and specialists from the Flinders Medical Centre will review isolated patients, and increase clinical surveillance and support for them and their families at the Marion Holiday Park.
The park's units are self-contained with kitchens, bathrooms and open areas.
Health Minister Stephen Wade said the initiative would support local jobs, provide medical care and accommodation for patients, and ease the pressure on hospitals when the peak hits.
"The Marion Holiday Park is conveniently located close to FMC, allowing for rapid medical attention if required," Mr Wade said.
Southern Adelaide Local Health Network chief operating officer David Morris said using the park would help people with a lack of accommodation and those in
shared living arrangements.
"By having access to clinicians remotely and direct assistance from the nearby Flinders Medical Centre, this is an excellent option for South Australians with
the virus and it is completely voluntary," he said.
So far SA has 287 confirmed COVID-19 cases, with some of them being cared for at home.
