@lorifin777 When you ask about "cmt1x" are you referring to Charcot-Marie-Tooth Neuropathy?

If so, here is a very clear explanation of how lungs are affected by the disease:
https://www.cmtausa.org/living-with-cmt/managing-cmt/breathing-and-cmt/
As far as I can tell, pulmonary MAC is not a common effect of this disorder, but anything that limits our ability to fill and empty our lungs does add infection risk.

Do you also have a diagnosis of Bronchiectasis or another lung disease? Has the doctor ordered sputum samples to see if the bacteria is cleared?