Sexual behaviour, STI knowledge and Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) prevalence in an asymptomatic cohort in Ruhr-area, Germany: PreYoungGo study

Genotypic cluster analysis of Neisseria gonorrhoeae reveals a spectrum of sexual mixing including among HIV-serodiscordant men who have sex with men

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.

Prevalence of Neisseria gonorrhoeae, Chlamydia trachomatis, Ureaplasma urealyticum among outpatients in central China: A retrospective study

Neisseria gonorrhoeae (NG), Chlamydia trachomatis (CT), Ureaplasma urealyticum (UU) are the common sexually transmitted pathogens and lead to genital diseases, highly prevalent all around the world. The objective of this study was to analyze the prevalence of NG, CT and UU among outpatients in central China. A total of 2186 urogenital swabs were collected from the patients and the NG, CT and UU pathogens were testing with RT-PCR method, meanwhile the medical records were obtained from the hospital information system. The overall infection rates of NG, CT and UU were 4.57 %, 6.63 % and 48.81 % respectively, showed the prevalence of UU was higher than NG and CT. The younger people had the highest infection rate of NG (10.81 %), CT (20.54 %) and UU (54.59 %). Single infection (89.09 %) was significant higher than co-infection (10.91 %), and the CT-UU co-infection was the prominent pattern (66.41 %). There were an obvious sex difference, the prevalence of NG and CT were significant higher in male, whereas UU was higher in female. Our study could contributed a better understanding of the prevalence of NG, CT and UU, facilitating to the development of effective screening, prevention and treatment policies.

An isothermal CRISPR-based diagnostic assay for Neisseria gonorrhoeae and Chlamydia trachomatis detection

IMPORTANCE

A method for Neisseria gonorrhoeae (NG)/Chlamydia trachomatis (CT) detection is developed using multiplex-recombinase polymerase amplification and Cas12a/Cas13a. This method can detect NG and CT simultaneously with high sensitivity and specificity. This method has great potential to be further developed into larger-scale screening and point-of-care testing (POCT).

Closing Sexual Health Service Gaps With a New Service Model in Germany: Performance of an on-Site Integrated, Cross-Sectoral, Low Threshold Sexually Transmitted Infections/HIV Counseling and Treatment Service

Purpose

In Germany, the incidence of bacterial sexual transmitted infections (STI) is on the rise and still high for HIV infections. The Center for Sexual Health Freiburg (CSHF) was established to offer low threshold access for STI/HIV counseling, testing, HIV pre-exposure prophylaxis (PrEP), and on-site treatment. The objective of this study was to analyze the performance of CSHF.

Methods

Longitudinal study that includes all clients presenting between 1 May 2020 and 28 February 2021 at CSHF and willing to sign informed consent.

Results

In the study period, 536 clients presented at CSHF of whom 417 clients were included in the study resulting in 668 client contacts. Clients' median age was 28.1 years (range: 18.0-73.1), 55.9% were men, 42.0% were women, 0.3% were transman, and 1.7% were not binary. Clients' sexual orientation was heterosexual (56.6%), homosexual men (26.2%), and bisexual (13.6%). STI screening resulted in the detection of any STI in 3.4% (95% confidence interval (CI): 0.7-6.1) of women, in 3.1% (95% CI: 0.0-6.5) of heterosexual men, and in 22.2% (95% CI: 13.0-31.5) of men having sex with men (MSM) not taking PrEP. Eighty-one MSM received PrEP with a total follow-up of 57.3 person-years and 0.44 STIs per person-year.

Conclusion

The substantial burden of STI in the study population emphasizes the need for regular and low threshold STI screening services. The concept of CSHF may facilitate access to STI/HIV counseling, testing, and PrEP for a wide spectrum of people and may prove to be an important contribution to the efforts to reduce STI and HIV incidence in Germany.

Online HIV/STI Risk Test (ORT): A prospective cross-sectional study among sexually active individuals in Germany

BACKGROUND

Our goal was to develop and evaluate an anonymous self-administrable web-based test to determine risk for HIV/STI.

METHODS

The Online HIV/STI Risk Test was developed and hosted since 12/2017. 11,529 participants completed the test and 10,668 were analyzed. The test included multiple choice questions about sociodemographic data, sexuality, sexual risk behavior, HIV/STI testing. Participant data was stratified by gender and sexuality and analyzed.

RESULTS

84.5 % were aged 18-39, 7.5 % < 18 and 8.1 % > 40. Males were 53.1 %, female 46.3 % and trans 0.6 %. 12.5 % were men who have sex with men (MSM). 59.1 % and 66.0 % of participants were vaccinated for hepatitis A and B respectively, but 75.1 % unvaccinated for HPV. Prior and repeated instances of HIV or other STI were higher among MSM. Yet, 61.4 % females, 70 % males and 55.4 % MSM had never tested for an STI. Although prevalence of > 3 sexual partners in the last twelve months was highest among MSM, condomless sex was greater among women. 34.5 % of males, 25.6 % of females, and 75 % of MSM engaged in anal sex respectively.

CONCLUSIONS

The online HIV/STI Risk Test is a useful tool to acquire data on STI risk-behavior for strategizing STI prevention, testing, and vaccination, thus improving sexual health.

Molecular chlamydia and gonorrhoea point of care tests implemented into routine practice: Systematic review and value proposition development

BACKGROUND

Sexually Transmitted Infections, including Neisseria gonorrhoeae (NG) and Chlamydia trachomatis (CT), continue to be a global health problem. Increased access to point-of-care-tests (POCTs) could help detect infection and lead to appropriate management of cases and contacts, reducing transmission and development of reproductive health sequelae. Yet diagnostics with good clinical effectiveness evidence can fail to be implemented into routine care. Here we assess values beyond clinical effectiveness for molecular CT/NG POCTs implemented across diverse routine practice settings.

METHODS

We conducted a systematic review of peer-reviewed primary research and conference abstract publications in Medline and Embase reporting on molecular CT/NG POCT implementation in routine clinical practice until 16th February 2021. Results were extracted into EndNote software and initially screened by title and abstract by one author according to the inclusion and exclusion criteria. Articles that met the criteria, or were unclear, were included for full-text assessment by all authors. Results were synthesised to assess the tests against guidance criteria and develop a CT/NG POCT value proposition for multiple stakeholders and settings.

FINDINGS

The systematic review search returned 440 articles; 28 were included overall. The Cepheid CT/NG GeneXpert was the only molecular CT/NG POCT implemented and evaluated in routine practice. It did not fulfil all test guidance criteria, however, studies of test implementation showed multiple values for test use across various healthcare settings and locations. Our value proposition highlights that the majority of values are setting-specific. Sexual health services and outreach services have the least overlap, with General Practice and other non-sexual health specialist services serving as a "bridge" between the two.

CONCLUSIONS

Those wishing to improve CT/NG diagnosis should be supported to identify the values most relevant to their settings and context, and prioritise implementation of tests that are most closely aligned with those values.

[Sexual behavior and prevention of sexually transmitted infections taking the SARS-CoV-2 pandemic into account. Data from a sexual healthcare and medicine center-WIR]

Hintergrund

Anwendungsbezogene Daten zu sexueller Gesundheit und sexuellem Verhalten in unterschiedlich sexuell aktiven Populationen stehen nur begrenzt zur Verfügung, sind aber für Präventions- und Versorgungsstrategien sehr relevant. Das multisektorale Versorgungszentrum WIR – Walk In Ruhr hat aufgrund seiner Besucher*innenstruktur Zugang zu Daten aus diversen Lebenswelten.

Ziel der Arbeit

Aus verschiedenen WIR-internen Datenquellen sollen populationsbezogene Erkenntnisse zu Alter, Geschlecht, sexueller Orientierung, Sexual- und Risikoverhalten gewonnen und Bedarfe für Prävention abgeleitet werden. Einflüsse der SARS-CoV-2-Pandemie auf das Sexualverhalten sollen durch den Vergleich verschiedener Zeiträume untersucht werden.

Methoden

Ausgewertete Datenquellen sind der Onlinerisikotest für HIV und STI, die COWIR- und PrEP-Studie sowie die Immunologische Ambulanz und das Gesundheitsamt im WIR.

Ergebnis

Sexuell übertragbare Infektionen (STI) sind von 2019 auf 2020 trotz Kontaktbeschränkungen gestiegen. Generell haben junge Menschen, Männer, die Sex mit Männern, und Frauen, die Sex mit Frauen haben, ein erhöhtes STI-Risiko aufgrund der gewählten Sexualpraktiken und der Anzahl sexueller Kontakte. Eine hohe Zahl bi- und transsexueller Kontakte ist festzustellen. SARS-CoV‑2 führte zu einer Reduzierung der Sexualkontakte. Sexualpraktiken wurden weiter gelebt. Die STI-Testquote und die Behandlungsrate stiegen an.

Diskussion

Die Daten aus dem WIR belegen, dass eine junge Klientel mit aktivem Sexualleben erreicht wird. Die Ergebnisse aus Fragebögen und dem Onlinerisikotest zeigen den Zusammenhang von erhöhten positiven STI-Tests mit Sexualverhalten und sexuellen Präferenzen, weshalb spezifische Strategien zu Sexualaufklärung, Prävention, Tests und Therapien erforderlich sind.

Testing as Prevention of Resistance in Bacteria Causing Sexually Transmitted Infections-A Population-Based Model for Germany

Prescribed antibiotic treatments which do not match the therapeutic requirements of potentially co-existing undetected sexually transmitted infections (STIs) can facilitate the selection of antibiotic-drug-resistant clones. To reduce this risk, this modelling assessed the potential applicability of reliable rapid molecular test assays targeting bacterial STI prior to the prescription of antibiotic drugs. The modelling was based on the prevalence of three bacterial STIs in German heterosexual and men-having-sex-with-men (MSM) populations, as well as on reported test characteristics of respective assays. In the case of the application of rapid molecular STI assays for screening, the numbers needed to test in order to correctly identify any of the included bacterial STIs ranged from 103 to 104 for the heterosexual population and from 5 to 14 for the MSM population. The number needed to harm—defined as getting a false negative result for any of the STIs and a false positive signal for another one, potentially leading to an even more inappropriate adaptation of antibiotic therapy than without any STI screening—was at least 208,995 for the heterosexuals and 16,977 for the MSM. Therefore, the screening approach may indeed be suitable to avoid unnecessary selective pressure on bacterial causes of sexually transmitted infections.

[Sexual health and medicine at the WIR-Walk In Ruhr: presentation of the center and results of the evaluation]

Hintergrund

Ein ganzheitliches Konzept sexueller Gesundheit und Medizin berücksichtigt die Diversität von Lebenswelten, um Klient*innen für Prävention, Testung, Beratung und Behandlung sexuell übertragbarer Infektionen (STI) zu gewinnen. Mit diesem Verständnis arbeiten die Immunologische Ambulanz, das Gesundheitsamt, die Aidshilfe sowie weitere Selbsthilfeorganisationen im WIR – Walk In Ruhr, Zentrum für Sexuelle Gesundheit und Medizin, in Bochum zusammen.

Ziel der Arbeit

Am Beispiel des WIR, das mit seinem innovativen Konzept eines Versorgungszentrums multiprofessionell innerhalb eines Settings sektor- und rechtsformübergreifend arbeitet, wird gezeigt, dass Erreichbarkeit, Test- und Behandlungsquote und HIV/STI-Risiko-Selbsteinschätzung sich verbessern. Das WIR wurde zudem im Auftrag des Bundesministeriums für Gesundheit über 3 Jahre extern evaluiert auch diese Ergebnisse werden dargestellt.

Methode

Das Konzept des WIR und die im WIR durchgeführten Studien werden deskriptiv dargestellt. Bei der externen Evaluation wurde ein Mixed-Method-Design aus quantitativen und qualitativen Erhebungen angewandt.

Ergebnis

Durch die Kooperation werden häufiger Frauen (27,7 %) und Heterosexuelle (56,4 %) als in der Ambulanz allein erreicht. Die Rate positiver Testergebnisse im WIR stieg von 2017 bis 2018 von 9,3 % auf 12,6 %.

Diskussion

Durch das integrative Versorgungskonzept des WIR gelingt es, Menschen mit HIV/STI früh zu erreichen und zu behandeln. Der Übergang von Prävention zu medizinischer Versorgung ist im WIR von zentraler Bedeutung. Gesundheitsberater sind ein wichtiges Instrument für die aufsuchende Arbeit. Psychosoziale sowie psychotherapeutische Beratung werden in hohem Maße genutzt. Durch die vielschichtigen Angebote von Prävention, Test, Beratung werden bessere medizinische Ergebnisse erreicht sowie die Eigenverantwortung für sexuelle Gesundheit gesteigert. Die Übertragung des Konzeptes in die Fläche kann einen Beitrag zur besseren Versorgung zu sexueller Gesundheit leisten.

[Diagnostic workup and treatment of sexually transmitted infections]

There are a number of reasons to exclude sexual transmitted infections (STI). In addition to testing patients presenting with symptoms like discharge, burning when urinating or genitals ulcers, risk-adapted STI tests should be offered. Medical history taking should include sexual orientation and practices, symptoms also of sex partners and symptom-free intervals, previous STI and other medical conditions (especially allergies against antibiotics), previous treatment, vaccination status, contraceptive methods and condom use. Clinical examination depends on anatomy, sexual practices and symptoms. It should always include the inspection of the genital and anal region, the throat and the skin. The goal is to also diagnose oral and anal STI and to provide guideline-based treatment including monitoring of outcome.