| mycobacterium microti--pulmonary tuberculosis in an immunocompetent patient. | human tuberculosis is caused by members of the mycobacterium tuberculosis complex, which includes m. tuberculosis, m. bovis, m. africanum and m. bovis bcg. however there are increasing reports of rarely occurring genetic variants such as m. canettii, m. microti and m. pinipedii. the natural reservoir, mode of transmission and potential modification of host interaction of these species is not yet fully elucidated. we report a rare case of extensive cavitary smear-positive tuberculosis of the left ... | 2009 | 19562286 |