How tuberculosis spreads?

Tuberculosis (TB) is spread from one person to other through the air. TB bacteria are released into the air when a person with TB disease of the lungs speaks, coughs, sneezes or sings. Other persons staying in the same room may get bacteria in their own lungs when they breathe in this air and may get infected. Family members living together with the sick persons are most likely to get infected.

Transmission of TB