(CF) is an inherited disease that affects the cells lining the lungs, sinuses, intestines, spleen and liver. It prevents chloride
ions from crossing the cell membranes properly.
This can clog organ ducts. In the lungs, the extra mucus crushes the cilia and leads to more lung infections. Medications can help; in late-stage disease, lung transplantation
may be life-saving.
Answer assisted by David Escobar, Medical Student