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P024 Clinical characteristics of herpes simplex virus urethritis compaerd with chlamydia urethritis among men: a case control study
  1. Jason Ong1,3,
  2. Anna Morton1,
  3. Helen Henzel1,
  4. Karen Berzins1,
  5. Julian Druce2,
  6. Christopher Fairley1,3,
  7. Catriona Bradshaw1,3,
  8. Jane Hocking4,
  9. Marcus Chen1,3
  1. 1Melbourne Sexual Health Centre, Melbourne, Australia
  2. 2Victorian Infectious Disease Reference Laboratory, Melbourne, Australia
  3. 3Central Clinical School, Monash University, Melbourne, Australia
  4. 4Melbourne School of Population and Global Health, Melbourne, Australia


Background/introduction Non-gonococcal urethritis (NGU) in males is a sexually transmitted infection commonly caused by’Chlamydia trachomatis and Mycoplasma genitalium. Herpes’simplex virus (HSV) has been reported as a causative agent in NGU; however, little is known about its clinical characteristics.

Aim(s)/objectives The study compared the clinical characteristics of men with HSV urethritis to those in men with chlamydial urethritis, and determined if there were any key differences.

Methods A retrospective case control study comparing the clinical and laboratory findings from men diagnosed with PCR confirmed HSV urethritis with those diagnosed with PCR confirmed chlamydial urethritis, was conducted between 2000 to 2015.

Results Eighty HSV urethritis cases were identified: 68% (95% CI 58–78) were HSV type 1 and 32% (95% CI 22–42) were HSV type 2. Compared with chlamydial urethritis, men with HSV urethritis were significantly more likely to report severe dysuria (20% vs 0%, p < 0.01) or constitutional symptoms (15% vs 0%, p < 0.01) and significantly less likely to report urethral discharge (19% vs 54%, p < 0.01). Men with HSV urethritis were significantly more likely to have meatitis (62% vs 23%, p < 0.01), genital ulceration (37% vs 0%, p < 0.01), and inguinal lymphadenopathy (30% vs 0%, p < 0.01).

Discussion/conclusion In our study men with HSV urethritis had distinctive clinical features, not usually associated with chlamydial urethritis: severe dysuria, constitutional symptoms, meatitis, genital ulceration and lymphadenopathy. Clinicians should consider HSV when these are present.

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