I am pretty new to C.F.I only found out that I had it two years ago and these last two years have been a learning experience. I normally have pseudomonas aeruginosa growing when I have a sputum test run. One time I even had Serratia Marcescens, but this time I have Klebsiella Oxytoca. I have never heard of this and I was wondering how common it is in cfers. I have looked on line, and it doesn't sound too pretty, but then again, they can make it sound pretty bad. Please let me know if you have had it and what they gave you to get rid of it. Thanks for your help.