Lymphogranuloma Venereum (LGV)

Case definition

Confirmed case

DNA sequencing for Chlamydia trachomatis confirming presence of serovars L₁, L₂ or L₃.

Probable case

Detection and confirmation of C. trachomatis (from any site) by detection of nucleic acid or antigen;

AND

Presence of one of the following:

proctitis; OR
inguinal/femoral lymphadenopathy; OR
suspicious lesion; OR
sexual exposure to a partner with confirmed or probable LGV.

Clinical symptoms consistent with LGV (i.e., proctitis, inguinal/femoral lymphadenopathy, or suspicious lesion) without a confirmed case of chlamydia; AND
Sexual exposure to a partner with confirmed or probable LGV.

Notes

A case that meets the case definition for probable LGV with a negative test result for LGV serovars is not considered a probable LGV case. A case that meets the case definition for probable LGV with an inconclusive test result for LGV serovars on confirmatory (genotype) testing is considered a probable LGV case.

Further information

For more information on the case definition of lymphogranuloma venereum, please refer to the Technical Appendix of the annual STI surveillance reports.