Dr.Horani is a member of the Division of Allergy, Immunology and Pulmonary Medicine. He was born in Israel and received his medical degree from the Hebrew University of Jerusalem. Dr. Horani completed a residency in Pediatrics at the Hadassah-Hebrew University Medical Center in Jerusalem between 2004 and 2009. He then pursued a fellowship in Pediatric Pulmonology at Washington University School of Medicine in St. Louis before joining the faculty of Washington University in 2014. Dr. Horani runs the PCD and Rare Airway Disease Center at Washington University Department of Pediatrics, where he evaluates and treats patients with complex rare lung disease and Primary Ciliary Dyskinesia, a genetic condition that results in impaired mucociliary clearance, causing progressive involvement of the respiratory tract characterized by recurrent infections of the lungs, middle ear, and paranasal sinuses.Dr Horani's clinical interests include early childhood lung disease, cystic fibrosis, Primary Ciliary Dyskinesia, and asthma. Dr. Horani is the recipient of multiple scientific awards related to his work in pediatric research. Working alongside members of a multidisciplinary team at Washington University in St. Louis, Dr. Horani's work in the laboratory focuses on airway cell differentiation and pathogenesis in disease, the importance of genes associated with the Primary Ciliary Dyskinesia, and the function of proteins important in the assembly of motile cilia, a structure known to be defective in PCD.