TPHA

The Biorex Diagnostics TPHA Test is a sensitive and specific indirect haemagglutination test for the detection of antibodies to Treponema Pallidum. Preserved avian erythrocytes are coated with antigen components of pathogenic T.  Pallidum (Nichol’s  strain). These Test Cells then agglutinate in the presence of specific antibodies to T. Pallidum resulting in the formation of characteristic patterns in microtitration plates. Antibodies to non-pathogenic treponemes are absorbed by an extract of Reiter’s treponeme which has been added to the cell suspensions.