Queensland has recorded 19,932 new cases of COVID-19 in the past 24 hours, a sharp jump on yesterday's figures.
Eleven people died with the virus overnight following the state's deadliest day of the pandemic.
The youngest death was a person in their 30s who was not vaccinated.
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One person in their 50s, two in their 60s, one in their 70s, three in their 80s and three in their 90s also died.
Premier Annastacia Palaszczuk urged those due for their booster to come forward and get it.
"Don't sit at home and think, 'I'll wait this one out'," she said.
"The booster is that added level of protection."
Quarantine scrapped for vaccinated international arrivals
Queensland will open its borders to international travellers without quarantine from this Saturday.
Arrivals will need to be fully vaccinated and will have to pass a rapid antigen tests within 24 hours.
"I know a lot of people have sons and daughters overseas or parents or brothers and sisters overseas," Ms Palaszczuk said.
"You are free to come in."
The state recorded its deadliest day of the COVID-19 pandemic on Tuesday, with 18 COVID-19 deaths and 15,962 new infections.
Nine of the fatalities where from residential aged care facilities.
Hospitals under strain
The Gold Coast University Hospital car park has been turned into a makeshift waiting room as Queensland authorities introduce new restrictions to cut hospital congestion.
New visitor restrictions for hospitals have been introduced to fight congestion, limiting general ward patients to two visitors, with only one allowed in emergency.
"Some of its just overflow and making sure that we do not have congested emergency departments," Health Minister Yvette D'Ath said yesterday.
Insiders at Ipswich Hospital said there are COVID-19 patients across five wards despite only one ward having negative pressure to restrict airflow.
"There will never be enough negative pressure rooms to put every COVID patient in when you start having transmissions so wide in the community," Ms D'Ath said.
Adding to the pressure on the system, the government says more than 6000 health workers — including almost almost 400 ambulance workers — are off work with COVID-19 or isolating as a close contact.
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