Cystic fibrosis (CF) is an inherited, chronic disease caused by a defective gene that affects the lungs and digestive system. The defective gene causes the body to produce thick, sticky mucus that clogs the lungs, which causes infection and respiratory ailments and obstructs the pancreas, blocking the production of important digestive enzymes that help the body break down and absorb food.
CATHERINE KIER, MD.
Director, Cystic Fibrosis Center
Department of Pediatrics
Division of Pulmonology, Allergy & Immunology