Medical Term:

Frei test

Pronunciation: frī

Definition: an intracutaneous diagnostic test for lymphogranuloma venereum: the Frei antigen is usually a sterile preparation of inactivated chlamydiae from domestic fowl; a positive-delayed type reaction is not diagnostically specific for lymphogranuloma venereum and is rarely used.

Synonym(s): Frei-Hoffmann reaction

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