Posted in Web Clinical Overview of Tuberculosis | Tuberculosis (TB) | CDC January 28, 2025 Tuberculosis (TB) is caused by a bacterium called Mycobacterium tuberculosis (M. tuberculosis). TB disease is one of the leading causes of death due to infectious disease in the world. TB disease is preventable and curable. https://www.cdc.gov/tb/hcp/clinical-overview/index.html