I'm relatively new to the CF world (my daughter Maggie is almost 6 months now) so I'm not sure about this. My sister (who is 24) has a friend that was diagnosed with asthma, had MRSA in her sinuses for years and other "health issues". Just this month she was told by her doctor who I think is a pulmonologist that she has CF. She was told she has a mild case and doesn't need to do anything about it. She is living in Haiti doing missionary work and is back there now. She was not sent to a CF doctor at all. What do you think of this?