Polly Matzinger is Head of the T-Cell Tolerance and Memory Section, Laboratory of Cellular and Molecular Immunology at the US National Institutes of Health, and is well known for her provocative and sometimes controversial approach to central questions in immunology.

Ken Shortman is Head of Immunology at the Walter and Eliza Hall Institute in Melbourne where he works on the lineages and functional subsets of dendritic cells.

Sir Gustav Nossal is a very active Professor Emeritus at The University of Melbourne, where he pursues a long-standing interest in vaccine development after having spent 30 years as Director of The Walter and Eliza Hall Institute, internationally distinguished for its contributions to immunology.

Peter Doherty won the Nobel Prize in Physiology or Medicine with Rolf Zinkernagel in 1996 for the discovery that the function of MHC molecules in immunity is to present antigens to T lymphocytes. He is now a Professor at the University of Melbourne and at St Jude Children's Research Hospital in Memphis.

Lewis Lanier is Professor and Vice Chair, Department of Microbiology & Immunology, University of California, San Francisco where he specializes in the signaling pathways and physiological functions of natural killer cells.

Siamon Gordon is GlaxoWellcome Professor of Cellular Pathology at the University of Oxford, and has devoted his research life to investigating the recognition and effector mechanisms of macrophages.

Polly Matzinger is Head of the T-Cell Tolerance and Memory Section, Laboratory of Cellular and Molecular Immunology at the US National Institutes of Health, and is well known for her provocative and sometimes controversial approach to the central questions in immunology.