The HIV Ag/Ab Combo Rapid Test Cassette (Whole Blood/Serum/Plasma) is a rapid chromatographic immunoassay for the qualitative detection of antibodies to Human Immunodeficiency Virus(HIV) type 1,type 2 and subtype O and antigens to Human Immunodeficiency Virus(HIV) P24 in whole blood, serum or plasma to aid in the diagnosis of HIV infection.