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
Last reviewed: 2026-09-12