Cystic fibrosis is a widespread single-gene disease. It is autosomal recessive in terms of inheritance. The responsible gene is the CFTR gene on chromosome 7 (7q31).
The disease begins to manifest itself at a young age. Mucoviscidosis appears in the epithelial cells.
It is a hereditary disease characterized by dysfunction of all exocrine glands and damage to vital organs and systems.
In children, relapsing bronchitis with purulent discharge, mucous, sputum cough, shortness of breath, slow weight gain, and often foul-smelling feces are noted.
Sometimes, frequent respiratory tract infections lead to irreversible lung damage with the formation of scar tissue and cysts.