1. Resident Medical Officer, Orange Health Service of Western NSW Local Health District, 1530 Forest Road, Orange, NSW 2800, Australia
2. Staff Specialist in Immunology and Paediatrics, New South Wales Immunisation Specialist Service (NSWISS) Team, Nepean Blue Mountains Local Health District, Derby St., Kingswood, NSW 2747, Australia
3. Staff Specialist in Department of Pathology, Nepean Hospital of Nepean Blue Mountains Local Health District, Derby St, Kingswood NSW 2747, Australia
4. Supervising Pathologist, Department of Microbiology, Pathology West-Orange, Orange Health Service, 1530 Forest Road, Orange, NSW 2800, Australia