Sir Peter Horby is Moh Family Foundation Professor of Emerging Infections and Global Health at the University of Oxford and the Director of the Pandemic Sciences Institute. The Pandemic Sciences Institute is a multidisciplinary initiative to create collaborative science-driven solutions to identify, prepare for, and counter pandemic threats. He is also Executive Director of the International Severe Acute Respiratory and emerging Infections Consortium (ISARIC), a consortium of international, national and local research networks whose research activities span 134 countries worldwide.

He is Co-Chief Investigator of the RECOVERY trial of treatments for viral pneumonia. He has advised the World Health Organisation, the UK Government and other agencies on epidemic preparedness, clinical research and clinical trial design for epidemic infectious diseases. He is the former, and founding, Director of the Oxford University Clinical Research Unit in Hanoi, Vietnam. The unit was established in early 2006 and conducts research on infectious diseases which crosses the disciplines of basic science, medical science and public health.