What Is Chlamydia?

What it is

Chlamydia trachomatis antigen

Why it matters

Most common bacterial STI; supports screening.

Specimen

Swab/Urine

Interpretation

Positive = active infection

Limitations

Confirm by molecular

Related test: Chlamydia Rapid Test — specimen: Swab / Urine

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Last reviewed: 2026-09-12