“We need to make sure that we are getting our population vaccinated,right across our state.”

Asked who she was furious with,Ms Palaszczuk clarified that workers in COVID wards needed to be vaccinated,and the receptionist worked just outside the ward.

“So for some reason she wasn’t vaccinated,so there will be a full investigation into that,” she said.

Chief Health Officer Jeannette Young said the receptionist worked in a separate section of the hospital dedicated to COVID patients,so the risk to other patients should be lower. However,she did have contact with two concierge workers and a janitor.

The woman,who lives in Sandgate,visited a Woolworths supermarket and a gym at Sandgate,worked two shifts at the Prince Charles Hospital,and travelled to Magnetic Island and a Sunday market in Townsville.

She was infectious from Saturday,June 19,developed symptoms two days later,and was tested on Monday,June 28.

A friend of the woman and two family members are sick and being tested. One of those,her brother and student of St Patrick’s College in Shorncliffe,has returned a positive result,Deputy Premier Steven Miles confirmed in an interview with 4BC Radio on Wednesday morning.

More than 57,000 Queensland Health staff – not just frontline workers – have received two doses of the vaccine,while 66 per cent have received at least one. This does not include staff who may have been vaccinated by their GP.

On Tuesday,Ms Palaszczuk said there needed to be a discussion about whether the vaccine should be made mandatory for all Queensland health staff,fly-in,fly-out workers and flight attendants.

The receptionist was one of two community cases reported on Tuesday;the other was a mine worker living in Ipswich.

Queensland authorities areconcerned about 170 miners who flew back into the state from a Northern Territory gold mine,where a FIFO miner tested positive after becoming infected with the Delta strain at a Brisbane quarantine hotel.

So far,114 of those miners have been tested,with 112 returning a negative result.

The two positive cases are the Ipswich miner,who is considered to be low risk,and thepreviously reported case of a female miner who travelled to Bli Bli on the Sunshine Coast.

Announcing the three-day lockdown,which will end at 6pm on Friday,Ms Palaszczuk said she was left with no option as “we need to go hard,we need to go fast”.

Dr Young would not be drawn on whether the lockdown could be extended beyond three days,saying it was “only day one”.

Ms Palaszczuk also said she was joining Victorian Premier Daniel Andrews in calling for a “massive reduction in overseas arrivals”.

Queensland declared Perth and Peel in WA,plus Darwin,Litchfield and Palmerston in the Northern Territory,as hotspots from 1am on Wednesday,meaning only Queenslanders would be able to enter the state from those areas,and they must go into 14 days of hotel quarantine.