Fascinating, but not surprising, from today’s MMWR:

M. Bovis is a pathogen primarily of cattle, deer, and people who consume unpasteurized dairy products. A large contact investigation around two patients with M. bovis pulmonary TB and the findings from molecular epidemiology strengthen the evidence for airborne person-to-person transmission of M. bovis infection.
The more we study mycobacteria, the more we realize how much we have yet to learn.