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purified protein derivative of tuberculin

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pu·ri·fied protein derivative of tuberculin (pyr-fd)
n.
Abbr. PPD Purified tuberculin containing the active protein fraction.
Patient discussion about purified protein derivative of tuberculin.

Q. What exactly is PPD? I heard it is a substance in hair color and that some women are allergic to it How can I know if I’m allergic to it?

A. That sounds nasty... so how can I know if i'm allergic to it or not?

Read more or ask a question about purified protein derivative of tuberculin


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