LYMPHOGRANULOMA VENEREUM (LGV)
| Causative organism | Chlamydia trachomatis serovars L1-L3 |
| Incubation period | 3-30 days |
| How far back to trace | 3 months |
| Usual testing method | Nucleic acid amplification testing of swab from anus, genital ulcer or bubo aspirate, confirmed by genotyping at a reference laboratory |
| Common symptoms | Proctitis is common among men who have sex with men (MSM) with rectal LGV. Genital ulceration and inguinal buboes are seen less commonly. |
| Likelihood of transmission per act of unprotected intercourse | Unknown |
| Likelihood of long-term sexual partner being infected | Unknown |
| Protective effect of condoms | Probably high |
| Transmission by oral sex | Probably rare |
| Duration of potential infectivity | Weeks to months, possibly years |
| Important sequelae | Inguinal abscess, likely enhanced transmission of HIV. |
| Direct benefit of detection and treatment of contact | Cure |
| Usual management of contacts |
Chlamydia/LGV testing: urine, pharyngeal and anal swab for MSM; cervical swab for women; test any genital ulcer or bubo aspirate. Alert the laboratory to the possibility of LGV so additional testing is performed on chlamydia positive specimens to identify LGV. |
| Contact tracing priority | High as the number of LGV cases reported in Australasia has been limited |
| Notification | Notifiable by laboratories in some Australian states and territories; not notifiable in New Zealand |