Dr Weldon's research programme is centred on host defence mechanisms and their regulation in acute and chronic lung inflammation to better understand the pathogenesis of lung diseases, such as Cystic Fibrosis.

Current projects are focussed on (1) developing novel biomarkers of pulmonary infection, inflammation and damage, (2) increasing understanding of innate host defence protein and microRNA function and their roles in disease pathogenesis, (3) investigating novel therapeutic strategies to repair and regenerate the lung in acute and chronic lung disease.