TB is a world-wide problem

TB is an airborne disease which can affect anyone but it is more likely to affect people whose immune systems are already weakened.  For this reason it is more likely to affect people in poor countries - who may be malnourished and have poor access to healthcare generally.

The 22 countries shown on the map accounts for 80% of the TB cases in the world

Alphabetical List of Countries:

Information about the epidemiology of TB, and about gobal TB control (especially the 22 high TB-burden countries) is available from the World Health Organization (WHO); Global TB database.