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  2. Quantiferon - Wikipedia

    en.wikipedia.org/wiki/QuantiFERON

    IGRAs cannot distinguish between latent infection and active tuberculosis (TB) disease, and should not be used as a sole method for diagnosis of active TB, which is a microbiological diagnosis. A positive IGRA result may not necessarily indicate TB infection, but can also be caused by infection with non-tuberculous mycobacteria.

  3. Interferon gamma release assay - Wikipedia

    en.wikipedia.org/wiki/Interferon_gamma_release_assay

    T-SPOT.TB, a form of ELISpot, the variant of ELISA (licensed in Europe, US, Japan and China). [3] The former test quantitates the amount of IFN-γ produced in response to the ESAT-6 and CFP-10 antigens from Mycobacterium tuberculosis, which are distinguishable from those present in BCG and most other non-tuberculous mycobacteria.

  4. Diagnosis of tuberculosis - Wikipedia

    en.wikipedia.org/wiki/Diagnosis_of_tuberculosis

    A meta-analysis with 1,595 inpatients and outpatients showed 70% sensitivity and 90% specificity for TB diagnosis in people living with HIV for Fujifilm SILVAMP TB LAM. [40] As of 2020, the test showed a high positive predictive value (95.2%) in HIV-negative outpatients. [41] Large prospective studies are on the way. [42]

  5. Mantoux test - Wikipedia

    en.wikipedia.org/wiki/Mantoux_test

    The results of this test must be interpreted carefully. The person's medical risk factors determine at which increment (5 mm, 10 mm, or 15 mm) of induration the result is considered positive. [12] A positive result indicates TB exposure. 5 mm or more is positive in An HIV-positive person; Persons with recent contacts with a TB patient

  6. T-SPOT.TB - Wikipedia

    en.wikipedia.org/wiki/T-SPOT.TB

    T-SPOT.TB counts the number of antimycobacterial effector T cells, white blood cells that produce interferon-gamma, in a sample of blood.This gives an overall measurement of the host immune response against mycobacteria, which can reveal the presence of infection with Mycobacterium tuberculosis, the causative agent of tuberculosis (TB).

  7. What Really Causes a False Positive COVID-19 Test? Experts ...

    www.aol.com/false-positive-covid-19-test...

    If you test positive at home, don’t assume it’s a false positive, especially if you’re experiencing symptoms of COVID-19. “If you have no symptoms and are testing because of an upcoming ...

  8. Tuberculosis - Wikipedia

    en.wikipedia.org/wiki/Tuberculosis

    IGRAs may increase sensitivity when used in addition to the skin test, but may be less sensitive than the skin test when used alone. [ 110 ] The US Preventive Services Task Force (USPSTF) has recommended screening people who are at high risk for latent tuberculosis with either tuberculin skin tests or interferon-gamma release assays . [ 111 ]

  9. Follow These Syrian Refugees As They Risk Everything For A ...

    testkitchen.huffingtonpost.com/1000-miles/?ncid=...

    Seven countries, an ocean and over a thousand miles stand between them and their dreams for a future

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