| Tuberculin infection represents the infection with | | | | the inner forearm. If the person that is having the |
| Mycobacterium tuberculosis. This problem may not | | | | test was exposed to the TB bacteria his skin will |
| affect only the possessors of the infection but the | | | | react to the antigens, developing a red bump in the |
| people with who they get in contact too. There are | | | | injected area within two days. |
| known two types of tuberculosis: active and inactive | | | | One of the most used tests in United States is |
| infections. Both of them have to be noticed in time | | | | Mantoux. This test is based on TB antigens called |
| because the peopleâs health is in danger. | | | | purified protein derivative or PDD. The problem with |
| That is why a tuberculin skin test is recommended. | | | | this test is that it can not say precisely weather it is |
| This test consists of injecting right under the skin a | | | | a active or an inactive infection. |
| small and precise amount of TB protein (antigens) on | | | | |