If an employee becomes a confirmed case of COVID-19, the employee must not attend work in any circumstances. This is part of your obligation to provide a safe workplace for your staff and others.
The employee must ring the DHHS Coronavirus Hotline on 1800 675 398 and follow all health advice provided. This will include requirements for self-quarantining until they recover. They should not return to work until they receive a clearance from a medical practitioner. It is imperative that employees adhere to medical advice and government directives. Employees should maintain regular communication with their manager in relation to their ability to work and to attend the workplace.
The employer must also call the DHHS Coronavirus Hotline on 1800 675 398 to seek advice. What needs to be done to meet your health and safety obligations will depend on the specific circumstances.