mycobacterium caprae mycobacterium caprae mycobacterium caprae is a species of bacteria in the genus mycobacterium and a member of the mycobacterium tuberculosis complex. the species is named after the caprines, the organisms from which m. caprae was first isolated. prior to 2003, the species was referred to as mycobacterium tuberculosis subsp. caprae. it is also synonymous with the name mycobacterium bovis subsp. caprae. mycobacterium caprae scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: mycobacteriales family: mycobacteriaceae genus: mycobacterium species: m. caprae binomial name mycobacterium capraearanaz et al. 2003, atcc baa-824 m. caprae is a causative agent of tuberculosis in humans. the species has also been isolated from tuberculous lesions in cattle, pigs, deer, and wild boars, as well as from camels and bison.