Which of the following is not a mycobacterium tuberculosis complex organism?: (A) M. Africanum, (B) M. Tuberculosis, (C) M. Bovis, (D) M. Kansasii
Answer is D. Mycobacterium tuberculosis complex organisms are obligate pathogens which display >95% DNA / DNA homology: M.tuberculosis, M.bovis, M. bovis bacille Calmette-Guerin (BCG), M.africanum, M.microti, and M.canettii. Like all microbacteria, members of the M.tuberculosis complex are aerobic, non-spore-forming, non-motile, slightly curved or straight roads.