Genotypic cluster analysis of Neisseria gonorrhoeae reveals a spectrum of sexual mixing including among HIV-serodiscordant men who have sex with men.
| Autor: | Chromy D; Department of Dermatology, Medical University of Vienna, Vienna, Austria.; Department of Dermatology and Venereology, University Hospital Essen, University Duisburg-Essen, Essen, Germany., Heissenberger D; Department of Dermatology, Medical University of Vienna, Vienna, Austria., Lippert K; Institute for Medical Microbiology and Hygiene, Austrian Agency for Health and Food Safety, Vienna, Austria., Heger F; Institute for Medical Microbiology and Hygiene, Austrian Agency for Health and Food Safety, Vienna, Austria., Indra A; Institute for Medical Microbiology and Hygiene, Austrian Agency for Health and Food Safety, Vienna, Austria.; Paracelsus Medical University of Salzburg, Salzburg, Austria., Hyden P; Institute for Medical Microbiology and Hygiene, Austrian Agency for Health and Food Safety, Vienna, Austria., Bauer WM; Department of Dermatology, Medical University of Vienna, Vienna, Austria., Grabmeier-Pfistershammer K; Department of Dermatology, Medical University of Vienna, Vienna, Austria., Willinger B; Department of Hygiene and Medical Microbiology, Division of Clinical Microbiology, Medical University of Vienna, Vienna, Austria., Weninger W; Department of Dermatology, Medical University of Vienna, Vienna, Austria., Pleininger S; Department of Dermatology and Venereology, University Hospital Essen, University Duisburg-Essen, Essen, Germany., Geusau A; Department of Dermatology, Medical University of Vienna, Vienna, Austria. |
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| Jazyk: | angličtina |
| Zdroj: | Infectious diseases (London, England) [Infect Dis (Lond)] 2024 Sep; Vol. 56 (9), pp. 712-721. Date of Electronic Publication: 2024 Jun 22. |
| DOI: | 10.1080/23744235.2024.2339864 |
| Abstrakt: | Background: Men who have sex with men (MSM) are more vulnerable to acquiring sexually transmitted infections (STIs). In 2019, for instance, 74% of European Neisseria gonorrhoeae (Ng) cases among males affected MSM. A recent report by the World Health Organization showed that most of the 2020' interim targets to end STIs by 2030 had not been met. A broadened understanding of STI transmission networks could guide future elimination strategies and reduce the STI burden. Therefore, we used whole-genome sequencing (WGS) to determine Ng-clusters and assess sexual mixing. Methods: WGS was performed on Ng-isolates collected at the Medical University of Vienna, Austria and was used for core genome multi-locus sequencing typing cluster analysis. Epidemiologic and infection-specific details were extracted from medical records. Results: Genomic analysis and demographic data were available for 415 isolates, and 43.9% (182/415) were allocated to 31 Ng-clusters. Nine clusters comprised samples from heterosexual individuals only (women N = 4, human immunodeficiency virus (HIV)-negative men N = 49, HIV-positive man N = 1), nine clusters included MSM only (HIV-negative N = 22, HIV-positive N = 13) and 13 clusters included both heterosexuals and MSM (HIV-negative N = 75, HIV-positive N = 18). Current use of HIV pre-exposure prophylaxis (PrEP) was reported by 22.8% of MSM. In multivariate analysis, only 'MSM' predicted clustering with isolates from HIV-positive individuals (adjusted odds ratio 10.24 (95% CI 5.02-20.90)). Conclusions: Sexual mixing of HIV-positive, HIV-negative MSM and non-MSM was frequently observed. Furthermore, HIV-serodiscordant clustering highlights the importance of PrEP rollout to avert HIV transmission. Our findings can inform future STI prevention strategies and continuous surveillance efforts are required to keep up with transmission dynamics. |
| Databáze: | MEDLINE |
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