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

Dear Dr. Roach: I had a tuberculosis (TB) skin test for my new job in May, and it was negative. They did a blood test in July. I have a question about a positive T-SPOT blood test for TB. They did a ...

DEAR DR. ROACH: I had a tuberculosis (TB) skin test for my new job in May, and it was negative. They did a blood test in July. I have a question about a positive T-SPOT blood test for TB. They did a ...

Researcher found that exposed individuals with confirmed TB infection -- i.e. a positive skin or blood test -- should receive priority treatment in settings with a low prevalence of the disease, ...

Add Yahoo as a preferred source to see more of our stories on Google. Tuberculosis, or TB, is a disease that infects nearly 11 million people worldwide, killing some 1.25 million of them every year, ...

After Judge M. William Graybill's announcement Monday that he may have active tuberculosis, nearly 100 people who were concerned about their potential exposure were given a tuberculin skin test by ...

Detecting tuberculosis early could play a significant role in eradicating the world’s most deadly infectious disease. The World Health Organization says 1.5 million people die from this devastating ...

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, ...

Dear Doctors: I got a tuberculosis skin test for my health care job and tested positive. A follow-up blood test was also positive, and I was diagnosed with latent TB. However, I had no known exposure.

Tuberculosis, or TB, is a disease that infects nearly 11 million people worldwide, killing some 1.25 million of them every year, per data from the World Health Organization. A person infected with the ...