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TB

TB Elimination: Diagnosis of Tuberculosis Disease

This information sheet discusses the steps taken to diagnose TB disease. It describes the symptoms of TB and explains how an individual suspected of having TB is evaluated using the following: medical history, physical examination, skin test or special TB blood test, chest radiograph, microbiological tests, and finally tests for drug resistance.

Testing for Tuberculosis (TB)

In a question and answer format, this information sheet discusses testing for tuberculosis (TB). There are two kinds of tests that are used to determine if a person has been infected with TB bacteria: the tuberculin skin test (TST) and TB blood tests.

Targeted Tuberculin Testing and Interpreting Tuberculin Skin Results

This information sheet discusses targeted tuberculin testing focusing on the groups at highest risk for latent TB infection (LTBI). It advises that testing should be given to those at highest risk for developing TB, and once TB disease has been ruled out, then it should be offered to those who would benefit from LTBI treatment. It also explains the steps that should be taken to ensure completion of the regimen.

Interferon-Gamma Release Assays (IGRAs) - Blood Tests for TB Infection

This information sheet discusses interferon-gamma release assays (IGRAs), which are whole-blood tests used in diagnosing both latent TB infection and TB disease. It notes that two IGRAs have been approved by the US Food and Drug Administration (FDA) and are commercially available in the United States. The information sheet explains how the IGRAs work; the advantages, disadvantages, and limitations of IGRAs; steps in administering these tests; interpretation; recommendations on when to use them; and whether IGRAs can be given to persons receiving vaccinations.

TB and Diabetes

An educational brochure focused with information on TB, including content on how TB infection affects people with diabetes, TB testing, and TB prevention.

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