I got the same news today also, after my daughter having an extremely rough 2 weeks. We have cultered it twice before, once when she was 1, and then again once when she was 3. It only took one round on cipro and tobi and we never saw it again. I've never seen her have the issues before though as she does now. She started with what seemed a cold, turned into fever, extremely productive cough, chest pain (and asking to go to hospital), bloody sputum, etc. We got into clinic for a culture a week after it started, and today has been another week and finally got results. I am so frustrated. Her fever has also decided to rear again, so we will be contacting them again tomorrow. She is starting tobi for 28 days tomorrow. I wonder if it could be something else mixed it with it.