John Marshall is a Professor of Surgery at the University of Toronto, and a trauma surgeon and intensivist at St. Michael’s Hospital in Toronto, Canada. His academic interests are sepsis, trauma, and the innate immune response. He has published 350 manuscripts, and 85 book chapters, and is the editor of 2 books. He is the founding chair of the International Forum of Acute Care Trialists (InFACT), Secretary-General of the World Federation of Societies of Intensive and Critical Care Medicine, vice-chair of the International Severe Acute Respiratory Infections Consortium, and an executive committee member of the Global Sepsis Alliance. He is past-chair of the International Sepsis Forum, past-President of the Surgical Infection Society, and past-chair of the Canadian Critical Care Trials Group. He has given invited lectures at more than 485 meetings around the world, and is an Associate Editor of the journals Critical Care Medicine and Critical Care.