![]() ELISA technique involves placing HIV antigens (locks) on the bottom of a microwell cup.Having the antibody means the antigen is also present.Antibodies and antigens work like locks and keys.This technique is based on the lock and key theory of antibodies.ELISA = Enzyme-Linked Immuno Sorbent Assay.4th generation-p24 + IgM and IgG and HIV-2.2nd generation-synthetic antigen and HIV-2.Enzyme-linked immunosorbent assay (ELISA or EIA).4th generation-p24 + IgM and IgG + HIV-2.2nd generation-synthetic antigen + HIV-2.Detect HIV antigen (P24 capsule protein). ![]() Detect human antibodies to surface, matrix and capsule proteins.Detect human antibodies to surface proteins.Principle Screening test Confirmation Test High Specificity HIV-infected persons on treatment are less infectious.HIV-infection status awareness is associated with reduced transmission risk behavior.Earlier detection leads to improved treatment outcomes.Approximately 1 in 5 (18%, or 207,600 persons) do not know they are HIV-infected.An estimated 38%-44% of all adults had been tested for HIV.Each year, approximately 16-22 million persons in the United States are tested for HIV. ![]()
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