Long standing experience in many aspects of global child health with a particular long-term interest in many aspects of childhood respiratory infections. Recent and current projects have explored global burden of disease, disease surveillance, use of linked routine heath datasets, risk factors and case management guidelines. Two major grants include a new EU IMI programme (led by the University of Edinburgh) focusing on RSV disease in children and adults; and an NIHR Global Health Unit on Respiratory Health (where his role is co-Director with Aziz Sheikh).