Cystic Fibrosis, or CF as it is commonly called, is a disease caused by an inherited genetic defect. As such it is not contagious and there is no risk of catching CF from another person with CF. About 1 in 23 people in the United States carry at least one defective gene, which makes it the most common genetic defect of its severity in the United States.

People with Cystic Fibrosis suffer from chronic lung problems and digestive disorders.