Nonspecific Tuberculin Test Reaction: Understanding the Causes and Clinical Implications
1. Introduction A nonspecific tuberculin test reaction occurs when the skin test for tuberculosis yields a positive or borderline result that is not caused by an active or latent infection of Mycobacterium tuberculosis. This immunological response is often the result of cross-reactivity due to a previous Bacille Calmette-Guérin vaccination, exposure to environmental nontuberculous mycobacteria, or … Read more