False positives in these types of tests, which identify immune markers rather than the disease-causing bacteria, can happen for a few reasons.

Medicare Part B may cover the costs of a purified protein derivative (PPD) test if your healthcare professional deems it necessary to diagnose tuberculosis (TB) due to existing symptoms. A PPD test ...

The bacteria that cause the disease can be spread through the air by coughing, sneezing or even just speaking. People nearby can inhale the airborne germs. The vaccine Bacille Calmette-Guérin (BCG) is ...

If you have experienced tuberculosis (TB) exposure or have symptoms, Medicare may cover a purified protein derivative (PPD) test. If you don’t have symptoms and haven’t experienced TB exposure, ...