Queensland has one new case of locally-acquired COVID-19 after a man visited a Gold Coast brewery.
He was in quarantine when he fell ill and not infectious in the community, Chief Health Officer Jeannette Young said on Saturday.
"That's perfect. He's been in quarantine for his entire infectious period, so there is no risk here at all," she told reporters.
Dr Young said the man was at Black Hops Brewery in Burleigh Heads on 20 March before being ordered into quarantine seven days later by health workers.
"He tested negative on 27 March and then he's become unwell and had now tested positive," she said.
Dr Young urged people to continue checking the Queensland Health COVID-19 website for updates on contact sites, after a historical case was identified as a nurse who contracted the virus from a man who arrived from Europe last month.
The traveller - who became a patient at the Princess Alexandra Hospital in Brisbane - has now been labelled the superspreader who infected a doctor that sparked the latest Queensland outbreak.
The nurse was the missing link in the first cluster and was infectious between 10 and 23 March but didn't develop symptoms.
"We're asking anyone who attended a venue she was at to please come forward and get tested, and also anyone in their household," Dr Young said.
Another patient who stayed in the same hospital room as the traveller also became infected with the virus, leading health officials to believe there could be a "problem with the environment".
"It could be coincidental but it is suspicious that both of those patients were being managed in the same room one after the other," Dr Young said.
Queensland recorded no new COVID-19 community cases for Good Friday.
Two overseas travellers were diagnosed with the virus in hotel quarantine on Saturday. There are currently 74 active cases in the state.
Health restrictions will remain for the next fortnight.
They include wearing a mask indoors in public, a 30-person limit on private gatherings and severely restrictions on visits to hospitals, prisons and aged care and disability facilities.
