1. Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Crawley, WA, Australia;
2. Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia;
3. Bone Marrow Transplantation Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia; and
4. Envoi Pathology, Brisbane, QLD, Australia