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Guideline

WHO consolidated guidelines on tuberculosis: module 3: diagnosis: tests for TB infection

Year of Publication
2022
Issuing Institution
WHO
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Recommendations

3 included recommendations

Mycobacterium tuberculosis antigen-based skin tests (TBSTs) may be used to test for TB infection.

Status
Maintained

Recommended in favor

Conditional

Certainty of evidence

Very low

Either the tuberculin skin test (TST) or interferon-gamma release assays (IGRAs) can be used to test for TB infection.

Status
Maintained

Recommended in favor

Strong

Certainty of evidence

Very low

interferon-gamma release assays tuberculosis interferon-gamma release assays (IGRAs) (and the TST) should not be used in low- and middle-income countries for the diagnosis of pulmonary or extra-pulmonary TB, nor for the diagnostic work-up of adults (including HIV-positive individuals) suspected of active TB in these settings (strong recommendation). This recommendation places a high value on avoiding the consequences of unnecessary treatment (high false-positives) given the low specificity of tuberculosis interferon-gamma release assays (IGRAs) (and the TST) in these settings.

Status
Maintained

Recommended against

Strong

Certainty of evidence

Very low

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