A staff member who has been at the Kings Park Campus of Copperfield College has tested positive for COVID-19.
Parents and carers were informed of the positive test on Monday night.
College principal Pip Griffiths said the school was working with the Department of Health and Human Services to develop a contact containment strategy.
Ms Griffiths said all people who were in close contact with the affected staff member will be contacted to ensure they know what actions to take.
All students have been advised to remain at home while the school attempts to contact the affected parties.
Ms Griffiths said the school would be in constant contact with parents.
“I understand this news will be concerning for many of you. I want to assure you we are doing everything we can to contain and slow the spread of the virus and ensure the health and safety of our whole school community,” she said.
“All families will be updated once the contact tracing has been completed. We will continue to keep you informed as further updates become available.”