Only people with active TB can transmit it to others.

If there is any question of active TB, sputum smears must be obtained.

You can usually cure active TB by taking several medicines for a long period of time.

If your lungs are infected with active TB, it is easy to spread the disease to others.

Care for a patient who has active TB, such as doctors or nurses.

Most of the time, doctors combine four antibiotics to treat active TB.

It's important to take the medicine for active TB for at least 6 months.

A positive skin test does not mean you have active TB, but it means you will need further evaluation and possible treatment.

In all, 90 detainees were infected during the man's two-week stay at the center, but none have developed active TB, the officials said.

Eight million people develop active TB annually all over the world.