Definitions for "Mycobacterium tuberculosis"
cause of tuberculosis
( M. tuberculosis). The namesake member organism of M. tuberculosis complex, and the most common causative infectious agent of TB disease in humans. At times, the species name refers to the entire M. tuberculosis complex, which includes M. bovis and five other related species.
The organism that causes TB and is sometimes called the tubercle bacillus; M. tuberculosis and three very closely related mycobacterial species ( M. bovis, M. africanum, and M. microti) can cause tuberculous disease, and they compose what is known as the M. tuberculosis complex.