Dr. Preston Church, a specialist in infectious disease as well as epidemiology, discusses nontuberculous mycobacteria, identifying the variety of diseases for which these agents are responsible. He explains the increased susceptibility for patients with HIV, with certain underlying lung conditions, or who have undergone organ transplantation. In this infectious disease podcast, Dr. Church talks about treatment of mycobacterial infection, concluding with a discussion on the spread of mycobacteria.