Tuberculin Purified Protein Derivative - Does a positive PPD result remains forever?

Posted:: 3 Sep 2009 by light pink
Topics:: tuberculin purified protein derivative

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... Like if tested for the second time around after years of positive PPD result,will it still be positive?

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13 Sep 2009

Tuberculin Purified Protein Derivative (PPD) is used to detect a tuberculosis (TB) infection. The result will only be positive if you still have TB.

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