HIV ELISA kits are assays designed to measure levels of HIV-associated antigens in biological samples, such as plasma, serum, culture extracts, and cell lysates. The human immunodeficiency virus (HIV) is a viral family consisting of two species, HIV-1 and HIV-2, which cause acquired immunodeficiency syndrome (AIDS). The ELISA target for HIV may refer to distinct antigens that are present on the virus or that are directly related to HIV infection. A notable example is the p24 antigen, which comprises the viral capsid. Other antigens include components of the HIV envelope, such as glycoproteins gp120 and gp41, gag proteins, HIV reverse transcriptase, and HIV protease. Click on the ELISA products below and visit the supplier for more information, including assay sensitivity and target specificity.