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Tuberculosis

3:21

Tuberculosis (TB): Progression of the Disease, Latent and Active Infections.

3:41

How Tuberculosis Begins

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A deeper understanding of how tuberculosis develops

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Effects of Tuberculosis on Lungs

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5 Things to Know About TB

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. Most infections do not have symptoms, in which case it is known as latent tuberculosis. About 10% of latent infections progress to active disease which, if left untreated, kills about half of those affected. The classic symptoms of active TB are a chronic cough with blood-containing mucus, fever, night sweats, and weight loss. It was historically called "consumption" due to the weight loss. Infection of other organs can cause a wide range of symptoms.
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