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Tuberculosis (TB) is an airborne infectious disease. TB usually affects the lungs and it is caused by Mycobacterium tuberculosis bacteria. TB is a major health problem worldwide, which causes health problems among millions of people every year. The disease is commonly caused by infection of the lung with Mycobacterium tuberculosis. In the Unani System of Medicine, tuberculosis is also known as Diq or Sil. Both these unani terms are considered synonyms