Professor David Alan Warrell is Emeritus Professor of Tropical Medicine and Honorary Fellow of St Cross College, University of Oxford, UK. After training at Oxford, St Thomas’ Hospital and the Royal Postgraduate Medical School in London, he lived, worked, researched and travelled in Ethiopia, Nigeria, Kenya, South Africa, Thailand, Burma, Sri Lanka, Bangladesh, Papua New Guinea, Brazil, Ecuador, Peru and other tropical countries, founding the Oxford University-based Tropical Medicine Research Program whose units study malaria and other major tropical diseases. He became Director of the Oxford Topical Network in 1986, and later Head of The Nuffield Department of Clinical Medicine, University of Oxford. He has published more than 400 research papers, articles, reviews and textbook chapters. He is a consultant to the World Health Organization on snake bites, rabies and malaria; the British Army, UK Medical Research Council, Foreign and Commonwealth Office, Earth Watch International (conservation), Zoological Society of London, Royal Geographical Society and ToxBase UK. He also served as the past President of the Royal Society of Tropical Medicine and Hygiene, and International Federation for Tropical Medicine. His principal research interest remains the pathophysiology and treatment of envenoming. In November 2010, David Warrell was awarded the William Osler Memorial Medal by the Universty of Oxford, and was recently (September 2019) awarded the Sir Patrick Manson Medal, the highest honor awarded by the Royal Society of Tropical Medicine and Hygiene.