Queensland has recorded five new locally-acquired Covid-19 cases, with health authorities monitoring the situation carefully over the next 24 to 48 hours.
All of the new cases are from the same family across two households, including a 13-year-old schoolgirl and a university employee.
The cases were identified when a daughter had a headache and the mother swiftly took her to get tested.
Queensland health authorities believe the family became infected after they were visited by someone from NSW.
"I really want to thank the parents, the mother, who took her child to get tested," Queensland Premier Annastacia Palaszczuk
"To identify this so early has been a godsend."
St Thomas More College in Sunnybank, the school the girl goes to, was closed on Friday and all households with a student are now in home quarantine.
Following the girl's positive test result, a relative who works at Griffith University, also tested positive on Friday.
Carolyn Evans, the university's vice chancellor, emailed staff on Friday and informed them a staff member had tested positive.
Premier pleads with Queensland, no lockdown
The premier said there will be no lockdown as of yet but pleaded with residents to be vigilant, stressing the importance of the next 48 hours.
"There is no lockdown today but in the next 24 to 48 hours we'll be closely monitoring the situation and if we start seeing any seeding, then we may have to take very quick, fast action," she said.
She said it was "absolutely important" residents wore masks, checked in at locations and go for tests if symptoms arose.
"We need people to be very vigilant this weekend," she said.
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