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infectious
HIV 1/2 Antibody/Antigen
HIV Ag/Ab· also: HIV Ag/Ab, HIV 1/2
Clinical Overview
Fourth-generation HIV test detecting both HIV-1/2 antibodies and p24 antigen. Detects HIV infection as early as 18 days post-exposure. Requires confirmatory testing if reactive.
Reference RangesWHO/IFCC standards
| Reference Range | Unit | Notes |
|---|---|---|
| Negative / Non-reactive | qualitative | Non-reactive = normal |
Also reported in: S/CO ratio.
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Related Topics
HIVAIDSSTIscreening