Hi, my grandson also contracted the pseudomonas and staph.They also say that they caught it at a early stage and put him on the TOBI inhaler.This was about 1yr6mths.This visit that he had with his doctor he just did the swab to check his progress with the two viruses.We won't know how he tested for another 2 months.But like they say they always will contract these 2 forms of viruses,it just depends on when.The longer it takes for them to contract them is better than sooner.But the TOBI has kept them under control.You will very seldomly clear it from your system,it will remain there dormaint until something wakes again.I'm not going to fib on what was told to me because all you is cover up what is facts on the viruses.You can't keep a child home from school,like the one person said what put your child in a bubble.What little life our children and grandchildren will have with cf I would like him to enjoy.And beleve me he is enjoying it at 3yrs,he is are little dare devil.He fishes,boats,swims,trampoline,motorcycle,hockey,baseball,soccer Well as you can see he will do it all.Have faith in god and everything seems to work out.