INTRODUCTION
The Lister Symposium was held primarily to review the latest concepts of the mechanisms of bacterial infections, and to highlight the research being carried out currently in Toronto and in Canada. The inclusion of several speakers from outside of Toronto added a strong foundation for the meeting.A wide range of topics were addressed and these demonstrated the many areas of research being pursued to better understand the pathogenesis of microbial infections. By drawing together physicians, scientists, and students from a variety of disciplines, it was hoped that the Lister Symposium would contribute, not only to our knowledge of medicine and science in this field, but also to the continued local and national cooperation required for first-class investigative research.This meeting was the first of its kind held under the auspices of the Department of Surgery at the University of Toronto, demonstrating its commitment to research and interdepartmental collaboration. We are most grateful to Professor Bernard Langer, Chairman of the Department of Surgery, for his support in this regard. The assistance of our sponsors and the Continuing Medical Education Office facilitated a wide outreach and enabled recognition of the course and accreditation for Canadian and American Medical participants. It is hoped that this material will provide a useful reference for future developments in the field.