The Syphilis/HIV 1.2.O Combo Rapid Test Cassette (Whole Blood/Serum/Plasma) is a rapid chromatographic immunoassay for the qualitative detection of antibodies (IgM, IgG, IgA) to HIV type 1, type 2, subtype O and syphilis-antibodies (IgM, IgG, IgA) to Treponema Pallidum (TP) in human whole blood, serum or plasma.