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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.

        OR

  • 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.


SOURCE: Lymphogranuloma Venereum (LGV) ( )
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