This book is a festschrift to mark the career of ogy, immunology and clinical aspects of each Dr David Tyrrell, eminent virologist and group. There are also more general chapters physician. Almost all of the contributors have overviewing the clinical manifestations, treat been colleagues or students at some time ment and pathophysiology of respiratory during his career. Unlike most festschrifts, virus infections. In addition, chapters in however, the essays have been integrated to which psychological aspects and the ethical produce a comprehensive book that covers use of human volunteers are discussed will be the entire field of non-bacterial infections of of interest to all those involved with respira the human respiratory tract. This is a measure tory infectious agents. of the breadth of interest of the research We hope also that this book serves as a undertaken by David, spanning a period of fitting tribute to a man who is a true poly over 40 years. math: a physician, researcher, teacher, We hope that this book will be of interest mentor, linguist and ambassador for science, to microbiologists, virologists and in particu among other things. To those of us who have lar, to physicians. All the major virus groups contributed to this book, he is even more: a are covered, as well as chlamydial and friend.