What is TB?
Tuberculosis, also called TB, is an infectious disease caused by a bacterium named Mycobacterium tuberculosis. TB usually involves the lungs (pulmonary TB) but can infect almost any organ in the body. TB is almost always curable with antibiotics that are readily available in countries such as the U.S.

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1. What is TB?
2. How is TB spread?
3. What are the signs and symptoms of TB?
4. How do you treat active TB?
5. What is TB infection and how do you treat it?
6. What is the difference between TB infection and TB disease?
7. What is the TB skin test?
8. How important is TB today?