I was successful in keeping MAC and bronchiectasis at bay for 10 years. Newest infection is pseudomonas and antibiotics plus 3 months using oscillating vest are clearing it up slowly. Bronchiectasis has now damaged both right and left lungs. I was treated with steroids for out of control asthma for 6 months before getting a bronchoscopy. First sputum sample had no organisms since the infection was so deep. I suggest everyone should remind the doctor that no organisms in sputum doesn't mean there is no underlying infection when there is a history of bronchiectasis.