*On a interesting side note, the disease I have
, Sarcoidosis, we typically have
an anergy to
mycobacterium species. Another words a negative PPD doesn't mean we don't carry an infection of M. tuberculosis, kind of similar to HIV patients. Also they constantly find Mycobacterium DNA in granuloma tissue in the majority of Sarc patients. That's how I ended up with a fixation with Tuberculosis.