Dr. Chris Bleackley is a biochemist and molecular biologist who has been responsible for the discovery and delineation of the major cytotoxic pathway used by T lymphocytes. His work has had international impact and has been crucial in understanding how the immune response controls virus infection, transplantation rejection and cancer. He is both a Howard Hughes International Research Scholar and MRC Distinguished Scholar and his work represents some of the most important achievements in immunology in Canada in the past fifty years.