I've been culturing staph aureus since I was a teenager. Until last year it was sensitive to orals and I only had them when things flared up. Now I need IVs to get it under control. So far I've had one round of IVs last fall and I'll be having my second in a few weeks. I wasn't diagnosed with CF until a I got a MAC infection. I was diagnosed via genetic testing at age 43. I was diagnosed with bronchectasis as a teenager as well. Not sure if it was recurring staph which caused that or what though...