Hello everyone, I've done the genetic test recently, at 20, and found out that i have the Delta F508 heterozygous. My docs here in Lebanon wonder why my case is severe despite the fact that it is heterozygous. In my childhood i used to be sick but not so often, but as i became 19 CF gave me a kick on the ass and i am very sick right now , any hints on this weird case! Rami