Some NTM species, notably Mycobacterium kansasii, Mycobacterium marinum, and M. fortuitum have been reported to induce anti-mycobacterial immune responses that interfere with the diagnosis of bovine tuberculosis either by TST or gamma interferon tests (Vordermeier et al., 2007; Michel et al., 2011). The gene discussed is IFNG; the disease is Tuberculosis, Bovine.