Published in TB and Outbreaks Week, August 11th, 1997
Cutaneous reactivity to tuberculin is the only marker that is widely available for the detection of latent infection with tuberculosis. However, the sensitivity of the PPD skin test is substantially reduced during HIV infection, and bacille Calmette-Guerin (BCG) vaccination and previous exposure to other Mycobacterium species can lead to false-positive reactivity.
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