I have kind of a silly question. I have a 2 1/2 month old with CF. They did a throat culture on him when he was first diagnosed. About a month later they told me he had a flavobacterium and also pseudomonas, but not the type that is usually a problem with CF patients. They did another culture and told me if the same two were still pesent, they would start antibiotics to get rid of them. I know CF patients seem to harbor these bacteria. Can anyone tell me more about this problem and what it all means. I am in the healthcare field, so I understand all the terms and how bacteria works, just need to know more about CF! Thanks so much!