“I don’t know if she got it directly from that patient because she wasn’t working with COVID cases that night,but we have to confirm that,or whether she’s got it from someone else in that hospital,” she said.

Dr Young said one of the positive cases who attended the bachelorette party as an entertainer had since tested positive.

He visited an aged-care home at Mermaid Beach while contagious,but Dr Young said all residents had been vaccinated.

“He works as a tradie,and he did go to an aged-care facility in the Gold Coast ... the team down at the Gold Coast are organising to go to the facility today and vaccinate the staff,” Dr Young said.

Dr Young said positive cases had now been linked to Hervey Bay,Gladstone,Brisbane,the Gold Coast and Byron Bay.

She would monitor case numbers in those areas before deciding whether the greater Brisbane lockdown needed to be extended.

Ms Palaszczuk confirmed about 11 per cent of frontline health workers treating COVID-19 patients were yet to receive the first vaccine jab.

Only workers who have been given the first dose of the vaccine will be allowed to treat COVID-19 positive cases.

Health Minister Yvette D’Ath said the nurse was due to get her COVID vaccination this week.

Ms D’Ath said the amount of vaccine supplied by the Commonwealth did not all arrive on the first day,but it had been increased progressively.

“Over the last week we have given over 20,000 vaccinations,so we are ramping up very quickly,” Ms D’Ath said.

“We’ll of course have a look at what’s happened at the PA Hospital,we want to understand how these transmissions occur.”

The state governmentplanned to have administered the first vaccine dose to all 37,000 frontline staffby April 4.

The 72-hour greater Brisbane shutdown was scheduled to end at 5pm on Thursday but health authorities could choose to extend that when they held a formal review on Wednesday evening.