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from Wikipedia, the free encyclopedia


Tuberculosis (commonly shortened to TB) is an infection caused by the bacterium Mycobacterium tuberculosis, which most commonly affects the lungs (pulmonary TB.

Tuberculosis is one of the most deadly and common major infectious diseases today, infecting two billion people or one-third of the world's population.

Note:   The above text is excerpted from the Wikipedia article "Tuberculosis", which has been released under the GNU Free Documentation License.
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November 25, 2015

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updated 12:56 pm ET