@windwalker We've been in Tucson for 30 years now. Interesting that you used to live here! I have not had a negative sputum since being diagnosed, although the count decreased during treatment quite a bit. I have had a variety of organisms culture out, kind of a mystery, and results change from test to test. "Simiae" is my most recent (& most concerning), and doc following closely to see what happens with next culture. I'm fortunate in that I feel good and really have only minor symptoms. Thanks for reaching out - I am learning a ton, and I already thought I knew a lot!