25 Jul
Treponema pallidum Hemagglutination Assay (TPHA) is a treponemal test for the serologic diagnosis of syphilis, a sexually transmitted infection caused by a spirochetes, Treponema pallidum.
Based on the principle of passive haemagglutination, this test detects anti-treponemal Antibodies (IgG and IgM antibodies) in serum or CSF. TPHA is used as a confirmatory test for the diagnosis of syphylis.