Hello @hishamhussain, thank you for the information .. quite interesting .. the Canadian website is very different than anything I have ever read on a USA site ie references to blood tests: "If, after four to eight weeks of treatment, there is little or no improvement in symptoms, blood tests may be repeated. If MAC is still present in the blood, your doctor may prescribe a new combination of drugs."

Do you think it refers primarily to HIV patients? I have not had any members being diagnosed with MAC via blood test. What are your thoughts as you read it? Hugs? Katherine