Interpretation

HIV (1&2) Antibody/Antigen
- Reactive: Suggests infection → confirm with differentiation assay.
- Non-reactive: No infection or window period.
Syphilis (VDRL/RPR + TPHA)
- VDRL/RPR reactive + TPHA positive: Active or past infection → titer monitoring.
- VDRL reactive, TPHA negative: Possible biological false positive.
HBsAg
- Positive: Hepatitis B infection.
- Negative: No infection or early window.
Anti-HCV
- Positive: Past or current infection → confirm with HCV RNA.
- Negative: No exposure.
Chlamydia
- Positive: Active infection → treat + partner treatment.
- Negative: No infection.