You can spread TB to others even if you do not yet have symptoms. TB mostly affects the lungs, but almost any part of the body can be infected. You may have any of the following: A fever or night sweats Weight loss without trying Tiredness A cough for at least 3 weeks Blood in …

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Tuberculosis (TB) is an infectious disease usually caused by Mycobacterium tuberculosis (MTB) bacteria. Tuberculosis generally affects the lungs, but can also affect other parts of the body. TB is a severe infection caused by bacteria called Mycobacterium tuberculosis. TB usually starts in the lungs. The bacteria are easily spread from one person to another through the air. They can live in your body a long time …

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