This document summarizes various methods for diagnosing tuberculosis (TB) including: 1. Radiographic examination of the chest to identify features of primary or reactivated TB. 2. Laboratory tests like smear microscopy, culture and nucleic acid amplification to detect Mycobacterium tuberculosis from respiratory or other specimens. 3. Immunological tests like tuberculin skin test, interferon-gamma release assays and serological tests to detect TB infection.