What is the disease name, according to description below :

- An inheritable disease that affects not only the lungs, but other systems producing mucous such as the digestive system
- Patients suffer frequent lung infections that are hard to treat because mucous is thick and sluggish, resulting in increased scarring (fibrosis) of the lungs
- Individuals with (...) take multiple enzyme pills due to the digestive abnormalities related to the unusual level of mucous production