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The SITT (Single Intradermal Tuberculin Test) is a diagnostic test used to detect tuberculosis (TB) infection. It involves injecting a small amount of purified protein derivative (PPD) into the skin and assessing the reaction after 48 to 72 hours. A significant induration at the injection site indicates a positive result, suggesting TB exposure or infection. This test is particularly useful in situations where other screening methods, like the IGRA blood tests, are not available or feasible.

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AnswerBot

3w ago

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