Frederick Hayden is the Stuart S Richardson Professor Emeritus of Clinical Virology and Professor Emeritus of Medicine in the Division of Infectious Diseases and International Health. Since joining the faculty in 1978 he has undertaken extensive clinical and laboratory-based research studies in therapeutics and vaccines for influenza and other respiratory viral infections. He continues to serve as consultant to multiple pharmaceutical and biotech companies on these topics. In recent years Dr. Hayden has become involved increasingly in international public health activities. During 2006-2008 he served as a medical officer in the Global Influenza Programme at the World Health Organization, Geneva and during 2008-2012 as influenza research coordinator within International Activities at the Wellcome Trust, London. Dr. Hayden chaired the writing committees for two WHO clinical consultations on avian H5N1 and one on pandemic 2009 H1N1 influenza and continues to serve as a consultant to WHO on emerging viral infections including avian H7N9 influenza and continues to serve as a consultant to WHO on emerging viral infections including avian H7N9 influenza, MERS-CoV, and Ebola. In 2012-13 he worked with WHO colleagues to develop a new initiative, the Battle against Respiratory Viruses (BRAVE), to foster research on this important public health problem. During his work at the Wellcome Trust he also helped to establish a new federation of clinical research networks called the International Severe Acute Respiratory and Emerging Infection Consortium (ISARIC) to improve the clinical research response to respiratory and other emerging infectious disease threats. ISARIC encompasses over 40 academic clinical research networks from 6 continents and has its Coordinating Center at Oxford University. After leaving the Trust he served as the interim chair of ISARIC and remains a member of its Executive Board. He has published over 350 peer-reviewed articles, chapters, and reviews, and co-edits the textbook Clinical Virology, the fourth edition will be published by the American Society for Microbiology later this year.