Amid the huge gap that has been left by David’s death, most intensely for his family, the outpouring of tributes and messages is testament to the countless individuals he influenced across the corners of the world. Travelling with David in Africa you could not walk into a Ministry of Health without meeting someone he had taught, mentored, or who had read one of his many articles, chapters or books. All of us can and must continue the struggle for health in his honour.