Jonathan Gaffin

Jonathan Gaffin is an Associate Professor of Pediatrics at Harvard Medical School and serves as Director of the Severe Asthma Program and Director of Pulmonary Clinical Research and Clinical Trials Programs at Boston Children's Hospital. His clinical work focuses on pediatric pulmonary medicine with expertise in asthma, bronchopulmonary dysplasia, cystic fibrosis, and respiratory disorders.

Dr. Gaffin's research interests center on pediatric pulmonology with particular emphasis on environmental factors in respiratory diseases, asthma pathogenesis and management, cystic fibrosis, and health disparities in inner-city populations. His work investigates the impact of air pollution, allergens, and socioeconomic factors on pediatric respiratory health outcomes.

His recent publications demonstrate a strong focus on environmental determinants of childhood asthma, precision medicine approaches, clinical trials methodology, and health equity. Notably, his research examines radon exposure effects, wildfire smoke impacts, school-based environmental interventions, and systemic racism's influence on asthma outcomes in vulnerable populations.

Dr. Gaffin serves as an expert for Boston Children's Hospital Precision Medicine Service and leads multiple clinical research initiatives including the Severe Asthma Program in Waltham, Massachusetts. His work bridges clinical care with innovative research to improve outcomes for children with complex respiratory conditions.