Hi all, just wanted to bring up having 1 CF gene with MAC]MAI, it was bought up years ago on here and sure enough I had a test for the CF gene after getting MAI and returned positive for 1 CF gene which could be why I was susceptible. Now there is a treatment called Ttrikafta which sounds fantastic, it counteracts that nasty CF gene, my daughter has just been to a seminar on it at the hosp and was impressed.