1. Skip to content
  2. Skip to main menu
  3. Skip to more DW sites
X-ray of human lungs, showing a tuberculosis infection
Image: GARO/PHANIE/picture alliance


Tuberculosis (TB) is a bacterial infection that affects the lungs. It spreads through the air via coughs, sneezes and saliva. With annual infection rates about 10 million, health experts say we face a 'TB epidemic'.

Skip next section Reports & Analysis