How is TB spread?

When a person with active TB disease coughs or sneezes tiny droplets that contain TB bacteria are released into the air. If another person breathes air containing these droplets, they may become infected with the TB bacteria. However, not everyone infected with TB bacteria becomes sick. As a result, two TB-related conditions exist: Latent TB infection (LTBI) and Active TB disease - both of which are treatable and curable.