The field is not mandatory to enter your Medicare card so you can still book your flu vaccination and leave this field blank. You may wish to ask the pharmacist for a copy of your flu vaccination record. If you are having your flu vaccination on campus, a certificate will be emailed to you.
International staff and students who do not have Medicare cards will still have their vaccinations uploaded to the Australian Immunisation Register (AIR). To have access to My Health Record and have visibility of the vaccination history, international students and staff will be required to apply for an Individual Healthcare Identifier (IHI). More information here.