Sebastian Johnston is Professor of Respiratory Medicine and Allergy at the National Heart and Lung Institute, Imperial College London, and Honorary Consultant Physician in Respiratory Medicine & Allergy at St Mary's Hospital, Imperial Healthcare NHS Trust, London. He is the Clinical Academic Training Lead for Respiratory Medicine at Imperial College & Imperial Healthcare NHS Trust. He is an Emeritus NIHR Senior Investigator.
He is past Director of the Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, was the Asthma UK Clinical Professor and was Chairman of the Infection Groups in both the European Respiratory Society and the European Academy of Allergy and Clinical Immunology and of the Asthma Section, European Academy of Allergy and Clinical Immunology.
His various publications cover topics such as viral triggers of asthma, airway inflammation and obstruction, and the mechanisms behind COPD exacerbations. Professor Johnston was Editor of Thorax (2002—2010) and serves on the Editorial Boards of several other respiratory and allergy journals. He has served on several ERC, MRC and NIH panels.