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, and 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's clinical interests include early childhood lung disease, cystic fibrosis, primary ciliary dyskinesia, and asthma.Dr. Horani's main research interest focuses on airway epithelial cell pathogensis including primary ciliary dyskinesia (PCD), 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 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 examines the importance of different genes in the pathogenesis of primary ciliary dyskinesia and studies the function of several proteins in the assembly of motile cilia, a structure known to be defective in PCD.