Cd4 <200 Cells / Ul Amounts) Or Very Sick People

many for all skin tests of which show no reaction (anergy). Anergy occurs probably due to inhibitory antibodies, or because so many T-cells have arrived in the affected body region

that too few left

to lead to significant skin reaction. False-positive results can occur

when patients have received non-tuberculous mycobacterial infections or the BCG vaccine. However, the effect of BCG vaccination on TST wanes after several years; after this time, a positive test is likely to TB infection hin.IGRAs The IGRA is a blood test

Health Life Media Team

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