The One Step Anti-HIV 1+2 whole blood Test is an in vitro, qualitative immunochromatographic assay for the detection of antibodies to human immunodeficiency viruses 1 and 2 (HIV-1 and HIV-2) in freshly-collected human finger stick whole blood/serum/plasma. It is designed to assist in the diagnosis of infection in those individuals who may be infected with HIV-1 or HIV-2.this one step test only takes about 20 minutes.