Cystic fibrosis is a terminal genetic condition that affects the respiratory, gastric intestinal and resproductive systems. People with the condition often have chest infections that can lead to lung scarring as they produce musus that is too sticky and so traps bacteria in the lungs. Recent work has suggested garlic extract may help reduce the number of infections.

http://www.sciencedaily.com/releases/2012/05/120527115543.htm