1. Prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae co-infections among patients with newly diagnosed syphilis: a single-centre, cross-sectional study
- Author
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Dan Veselý, Zuzana Kružicová, Ladislav Machala, Jana Hercogová, Hanus Rozsypal, Filip Rob, Hana Zákoucká, Daniela Vaňousová, Blanka Sýkorová, Šárka Lásiková, and Kateřina Jůzlová
- Subjects
Male ,medicine.medical_specialty ,Gonorrhea ,Chlamydia trachomatis ,HIV Infections ,medicine.disease_cause ,Asymptomatic ,Men who have sex with men ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Prevalence ,Humans ,Medicine ,Syphilis ,030212 general & internal medicine ,Homosexuality, Male ,Cervix ,0303 health sciences ,Chlamydia ,Coinfection ,business.industry ,Public Health, Environmental and Occupational Health ,030311 toxicology ,General Medicine ,Chlamydia Infections ,medicine.disease ,Neisseria gonorrhoeae ,Cross-Sectional Studies ,medicine.anatomical_structure ,Female ,medicine.symptom ,business - Abstract
Objectives: The aim of the study was to determine the prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae co-infections among patients with newly diagnosed syphilis. Methods: In patients with any stage of newly diagnosed syphilis swabs were performed from urethra, rectum, pharynx and cervix according to the gender and type of sexual intercourse. From these smears standard validated nucleic acid amplification tests (NAATs) for Chlamydia trachomatis and Neisseria gonorrhoeae infections were done. Results: From 548 (488 men, 60 women) screened patients co-infection was detected in 15.9% of the cases. The majority of the co-infections (86.2%) were asymptomatic. The overall prevalence of chlamydial infection was 11.1% and 8.8% for gonococcal infections. In men who have sex with men (MSM) the prevalence of co-infections was significantly higher (20.0%) than in heterosexual men and women (4.2%) (p < 0.001). In MSM patients the presence of co-infection was significantly associated with HIV infection (p < 0.001). Among MSM 9.6% of the tests detected infection in anorectal site, while prevalence in urethral (2.8%) and pharyngeal (2.4%) localization was significantly lower. In heterosexual patients prevalence was less than 2.0% in all anatomic sites. Conclusions: The implementation of screening tests in case of sexually transmitted infections in patients with newly diagnosed syphilis is an important part in the management of this disease. These results suggest that screening of asymptomatic heterosexual patients leads to detection of minimum co-infections, but in MSM (especially HIV positive) should always be performed at least in anorectal site, where asymptomatic co-infections are common.
- Published
- 2019