Tuberculosis

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Overview

In 1993, the World Health Organization (WHO) declared tuberculosis a global emergency. Tuberculosis (TB) is responsible for more deaths than any other infectious disease. Once called consumption, TB is a highly contagious, persistent disease characterized by the formation of hard grayish nodules, or tubercles. The disease is most often caused by the bacterium Mycobacterium tuberculosis and usually occurs in the lungs (the initial site of infection), but it also can occur in other o...Read the full article