On Saturday, Deputy Premier Steven Miles confirmed that the staff member was a doctor.
Queensland Health said in a statement that the doctor had contact with COVID-19 positive patients in the early hours of Wednesday morning, and was infectious in the community on Thursday.
Test results revealed the doctor had low levels of the virus which meant that she may have only been infections for around one day—before being tested on Friday.
Queensland Health did not immediately respond to a request for comment.
Queensland Health is currently tracing the doctor’s movements and any contact she may have had with staff, family, and friends.
The public will be alerted if there is any risk to the broader community.
Meanwhile, all non-essential visits to patients will not be allowed.
“Staff will wear masks at all times. Patients will be required to wear masks at all times unless it is not clinically appropriate. Non-urgent outpatient bookings and elective surgery will be postponed.”
Anyone with symptoms is being advised to get tested immediately and isolate unit they receive a negative result.
The health department will provide an update on Sunday.