Detecting TB early goes a long way toward avoiding some of the disease's worst outcomes and preventing its spread to others.

If the area of skin where you received the PPD injection isn’t swollen or is only slightly swollen 48 to 72 hours after the injection, the test results are negative. A negative result means that ...

Share on Pinterest The first part of the TB skin test will be an injection into the forearm with a small amount of tuberculin. Image credit: Greg Knobloch, Centers for Disease Control and ...

The Centers for Disease Control and Prevention (CDC) has published a warning (Inadvertent intradermal administration of tetanus toxoid-containing vaccines instead of tuberculosis skin tests ...

A PPD test involves an injection of fluid called tuberculin beneath your skin. The test is sometimes called a tuberculin skin test (TST). During the first visit for this test, you receive the ...

The reaction manifests as thickening and hardening (induration) of the skin at the injection site. An induration of ≥ 5 mm indicates M. tuberculosis infection. Tuberculosis (TB) primarily ...

Also, the single injection cleared infection from lungs and other tissues in mice that had been previously infected with TB. The researchers observed no adverse effects in the mice, but if side ...