- Evidence of active or latent tuberculosis (TB) as documented by medical history and examination, chest X-rays (posterior, anterior, and lateral), and TB testing: either a positive tuberculin skin test (TST; defined as a skin induration >=5 millimeter [mm] at 48 to 72 hours [hrs], regardless of Baccillus Calmette-Guerin [BCG] or other vaccination history) or a positive (not indeterminate) QuantiFERON-TB Gold test.