What is TB?
Tuberculosis (TB) is a disease caused by a bacterium called mycobacterium tuberculosis. The bacteria usually attack the lungs, but TB bacteria can attack any part of the body, such as the kidney, spine and brain. If not treated properly, TB can be fatal.  
Tuberculosis is one of the world’s deadliest diseases:
  • One-third of the world's population is infected with TB.
  • In 2011, nearly 9 million people around the world became sick with TB. There were 1.4 million TB-related deaths worldwide.
  • TB is a leading a leading killer of people who are HIV-infected.

TB external resources