CF wasn't recognized as a disease until 1938.
It was recognized as a disease in 1938 by Dr. Dorothy Hansine Andersen. She was also the first person to develop a fully functional test to diagnose the disease and then eventually treat it.
In conclusion, CF, though a serious disorder is also manageable, and the symptoms of it are indeed treatable. If one keeps regular appointments and follows the doctor's orders, it is possible to live to at least through middle age with CF, as well as lead a productive life. Some CF patients are even known to finish school, obtain a college degree, and move on to a career of their choice unhindered for the most part. In fact, female pop singer Alice Martineau had CF, and passed away in 2003 at the age of 30 due to complications of her disease. She often spoke publicly about her condition and helped to fund the CF foundation whilst she was still alive. There are several more notable celebrities who have had the disease throughout history.