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Queensland months away from infection peak

Queensland Premier Annastacia Palaszczuk is seen during a press conference at Queensland Parliament House in Brisbane, Tuesday, March 31, 2020. Premier Palaszczuk announced that Queensland had 55 more cases of coronavirus (COVID-19), taking the state's overall number to 743 cases. (AAP Image/Darren England) NO ARCHIVING

Premier Annastacia Palaszczuk (pictured) has warned Queensland is still some way off approaching its infection peak (AAP Image/Darren England)

Queensland's coronavirus tally has climbed again and the state is months away from a peak in infections, the premier says.

The tally climbed by 39 new cases overnight, taking the total number to 873 since the outbreak began. Four Queenslanders have died.

Premier Annastacia Palaszczuk has warned Queensland is still some way off approaching its infection peak.

"We haven't even started to climb the curve. We are about two or three weeks behind NSW and the peak could be in July, August, September," she told ABC radio on Friday.

"We will continue to see increases of cases."

She said 80 to 85 per cent of cases were still linked to overseas travel as Queenslanders return home from high-risk countries.

Queensland imposed even tighter border controls overnight, with unauthorised travellers being turned back at the state's border with NSW.

The premier said 16 people had been turned around since midnight.

Under the new rules Queenslanders are being let in, along with freight services.

Everyone else is being refused entry unless they hold a government permit proving they are travelling for essential reasons, such as work or medical appointments.

Water barriers and check points have been stepped up at Coolangatta, the Gold Coast's southernmost suburb.

And water barriers have been used to close off some streets to stop people trying to avoid checkpoints.

There's also an increased police presence at the Brisbane airport.

Non-residents who don't have an entry permit will not be allowed to leave the airport, and will be returned to their point of origin on the next available flight.

Australia has now recorded more than 5100 coronavirus cases, including 25 deaths.

The premier has warned of a tough six months ahead, as Queenslanders deal with rules that urge them not to leave their homes unless it's truly necessary.

But Ms Palaszczuk has pulled back slightly on the prime minister's advice that households must limit visitors to just one non-resident at a time.

"You can have two additional people to your house, and when you go outside you can only have two people," Ms Palaszczuk said on Thursday.

"Don't have strangers to your house, so I think if everyone abides by those rules we'll be okay."

The state is also closing most national parks, walking tracks and 4WD areas.

The parks will be closed to the public, along with hiking tracks, picnic areas, camping areas, swimming holes and lookouts from Friday.

© AAP 2020