The Bio-Rad Geenius™ HIV 1/2 Supplemental Assay is a single-use immunochromatographic assay for the objective confirmation and differentiation of individual antibodies to Human Immunodeficiency Virus Types 1 and 2 (HIV-1 and HIV-2) in fingerstick whole blood, venous whole blood, serum, or plasma samples (EDTA, heparin, and sodium citrate).