tuberculin purified protein derivative , PPD (skrót)

The needle points are dipped in tuberculin purified protein derivative (PPD) and pricked into the skin.

A synthetic dodecapeptide of A-gliadin (residues 206-217) was kindly provided by Dr D Jewell, Radcliffe Infirmary, Oxford, and was conjugated to tuberculin purified protein derivative (PPD) to act as a carrier using 0.05% gluteraldehyde.