TST induration ≥ 5 mm was considered ... stratified according to past or current tuberculosis (TB) and previous positive tuberculin skin test (TST) All patients (n = 373) Patients with past ...

All students must satisfy this requirement, either by a positive ... U.S. Tuberculin Skin Test (PPD) within 3 months of matriculation (the start of your enrollment at UAB): Tb skin tests must be read ...

ALL TB TESTING (skin, blood, Chest X-Ray) MUST BE PERFORMED IN THE U.S. If no history of positive Tb skin test, two separate skin tests or one IGRA blood test (Quantiferon/T-Spot) performed in the U.S ...