Sexually Transmitted Infections
● BMJ
Preprints posted in the last 90 days, ranked by how well they match Sexually Transmitted Infections's content profile, based on 23 papers previously published here. The average preprint has a 0.02% match score for this journal, so anything above that is already an above-average fit.
ADAMA, O. I. W.; Bercot, B.; Sadio, A. J.; Gbeasor-Komlanvi, F. A.; Tchankoni, M. K.; Konu, Y. R.; Salou, M.; Mensah, E.; Dagnra, A. C.; Ghosn, J.; Ferre, V. M.; Descamps, D.; Charpentier, C.; Ekouevi, D. K.; Bebear, C.
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Background. The objective was through an analysis of longitudinal data from the DepIST-H cohort to estimate the incidence, describe the dynamics and factors associated with CT/NG infection in MSM in Togo. Methods. A total of 200 MSM in Lome, Togo, were included in the ANRS I MIE 12400/DepIST-H cohort, half living with HIV. After inclusion in the study, participants received follow-up clinical visits at 6 and 18 months, and laboratory tests were performed at baseline (M0) and at 12 and 24 months (M12 and M24). PCR tests for CT and NG were performed from pharyngeal, anal and urine samples collected using the Xpert(R) CT/GC kit (Sunnyvale, CA, USA). To identify the factors associated with anal bacterial STIs, offset term Poisson regression models were performed. Results. Among 200 MSM (median age 24 years), CT and NG incidence rates were high ({approx}22 cases per 100 person-years), particularly at the anal site. Multiple partners significantly increased anal NG incidence (aIRR 2.35). Anal NG incidence was significantly lower among participants with income-generating activity (aIRR 0.57). Trends suggested higher anal CT and NG incidence in the presence of pharyngeal infection, but associations were not statistically significant Conclusion. This study confirms that MSM remain highly exposed to STIs in Togo and highlights the need to strengthen prevention efforts within this population. Postexposure doxycycline prophylaxis and multisite pooled-sample screening represent promising avenues to strengthen prevention efforts within these populations.
Mittelstaedt, R.; Helekal, D.; Kline, M. C.; Oliveira Roster, K. I.; Robbins, G. K.; Ard, K. L.; Grad, Y.
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Background: Doxycycline post-exposure prophylaxis (doxy-PEP) reduces the incidence of bacterial sexually transmitted infections (STIs) among men who have sex with men and transgender women (MSMTW), but it may select for antimicrobial resistance (AMR). AMR development will depend in part how doxy-PEP changes rates of antibiotic use. Methods: We conducted a retrospective electronic medical record review of antibiotic prescriptions received by patients at the Massachusetts General Hospital Sexual Health Clinic from January 1, 2023, to December 27, 2025. Using a Bayesian negative binomial regression, we assessed the direct, indirect, and combined effects of doxy-PEP implementation on antibiotic prescription rates among doxy-PEP-eligible MSMTW who were receiving HIV pre-exposure prophylaxis. Results: Controlling for direct effects, the cohort's total antibiotic prescription rate decreased by 10% (0.90, 95% CI 0.87 - 0.94) for every 100 doxy-PEP starts. Doxy-PEP users were prescribed antibiotics at double the rate predicted in the absence of doxy-PEP implementation, and, controlling for indirect effects, received 3.40 (95% CI 2.95 - 3.91) times the antibiotic prescriptions of patients not using doxy-PEP. Doxy-PEP non-users were prescribed antibiotics at less than half the rate predicted in the absence of doxy-PEP. The full cohort's overall antibiotic prescription rate increased by 1.4 times after doxy-PEP implementation. Conclusions: Individuals who are taking doxy-PEP have higher antibiotic prescription rates, increasing selection for antibiotic-resistant bacteria in these individuals. However, doxy-PEP-driven decreases in the overall incidence of bacterial STIs have the potential to decrease selective pressure for resistant organisms in those not using doxy-PEP.
Yuan, J.-M.; Viviani, L.; Mullen, D.; Ogaz, D.; Mohammed, H.
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Background Chemsex, drug use before/during sex to facilitate and enhance the experience, is undertaken by a minority of gay, bisexual and other men who have sex with men (GBMSM), but evidence of chemsex prevalence in England is limited. This study describes trends in chemsex prevalence between 2022-2025 and identifies factors associated with chemsex amongst GBMSM in England. Methods Data from the RiiSH study (2022-2025), an annual online cross-sectional survey of GBMSM recruited through social networking/dating apps and community partners, were analysed. Trends in chemsex prevalence and adjusted prevalence were estimated using log-binomial regression models. The following seven variables were candidate factors associated with chemsex and were assessed through logistic regression: age, sexual orientation, education, employment, HIV status, HIV PrEP use, and sexual health service (SHS) use. Results 5728 GBMSM were included in this study. Adjusted chemsex prevalence varied from 6.1% in 2022 to 4.2% in 2023, 5.1% in 2024 and 6.8% in 2025. Chemsex was more likely in GBMSM who were: gay (aOR=1.57 versus other sexual orientations; 95%CI 1.11-2.29, p=0.01), unemployed (aOR=3.08 versus employed full-time; 95%CI 2.19-4.26, p<0.001); aged 35-59 versus 16-34 years (p<0.001), with recent HIV PrEP use (aOR=3.79 versus no recent use; 95%CI 2.63-5.56, p<0.001), SHS use (aOR=2.23 versus no recent use; 95%CI 1.76-2.83, p<0.001), and living with HIV (aOR=3.16 versus negative/unknown HIV status; 95%CI 2.43-4.09, p<0.001). Conclusions Chemsex prevalence was low and stable between 2022-2025. PrEP and SHS use were associated with chemsex, supporting integration of specialist support services within SHS.
Landray, I.; Carpenter, J.; Free, C.
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Background Preventing sexually transmitted re-infections brings health benefits and can be significantly less costly than treating their sequelae. Safetxt is a potential novel digital intervention developed to promote safer sexual behaviours. However, a recent randomised controlled trial of safetxt found no effect on reinfection at 1 year (OR 1.13, 95%CI: 0.98-1.31). We investigated if safetxt's effect was mediated through sexually risky behaviours. Methods We used data from 6248 young people with STIs from 92 UK sexual health clinics. The direct and indirect effects of safetxt on reinfection were estimated using the counterfactual approach. Condom use at last sexual encounter, number of sexual partners and STI testing were assessed as mediators. These were analysed singly and together, using regression models and a formal weighting approach. The assumptions of each approach were considered and tested. Analyses were repeated in the subgroup showing the most promising effect of safetxt: men who have sex with men or with men and women (MSM/MSMW). Results No evidence was found for the total, indirect or direct effects differing from the null. Despite not being significant, for MSM/MSMW, some of safetxt's effect on reducing reinfection was identified as being offset through its effect on number of sexual partners. Conclusions There was no evidence that safetxt's effect on reinfection was mediated through changes in sexually risky behaviours. Adaptations to specifically target these behaviours are unlikely to improve safetxt's overall effect. However, improving safetxt's effect on the number of sexual partners a participant has may improve its effect for MSM/MSMW.
Novak, J.; Vik, V.; Drahos, M.; Langerova, A.; Thon, V.; Kratka, Z.
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Background: European Association of Urology (EAU) Guidelines identify urogenital infections as a possible treatable cause of infertility, yet the current recommendation for antibiotic treatment remains weak due to a lack of high-quality evidence. We evaluated the effect of antibiotic treatment of asymptomatic urogenital infections on both conventional and apoptosis-related (flow cytometry sperm apoptosis test, FACS-APO) sperm parameters, as well as on pregnancy outcomes, in infertile couples. Methods: In this retrospective, single-centre study, we analysed 265 couples with an asymptomatic urogenital infection (Ureaplasma urealyticum, Mycoplasma hominis, Mycoplasma genitalium, and Chlamydia trachomatis) confirmed in at least one partner by first-void urine testing, who received simultaneous antibiotic treatment. Paired conventional semen analysis and FACS-APO were performed before and 0-9 months after treatment completion. Partner infection concordance, the effect of follow-up timing on treatment response, and pregnancy outcomes within 12 months were also assessed. Results: Sperm concentration, total sperm count, total and progressive motility, and the proportion of viable sperm increased significantly after treatment, while the proportion of late apoptotic / necrotic sperm and calculated sperm DNA fragmentation decreased significantly (all p<0.05); the proportion of early apoptotic sperm remained unchanged, and semen volume did not change. Among 244 couples with complete bilateral microbiological testing, Ureaplasma urealyticum was by far the most prevalent pathogen (57.8% of men, 87.7% of women), and female partner positivity given male positivity was 83.0%. The improvement in sperm concentration and total sperm count was most pronounced within 3 months after treatment and diminished, or reversed, beyond 6 months. Pregnancy was achieved in 127 of 265 couples (47.9%; per-protocol rate 53.4%) within 12 months, most commonly following in vitro fertilization (72/127) or spontaneously (21/127). Conclusions: Antibiotic treatment of asymptomatic urogenital infections in infertile couples was associated with significant improvement in conventional semen parameters and a reduction in sperm apoptosis and calculated DNA fragmentation. Given the retrospective, uncontrolled design, these findings should be regarded as hypothesis-generating rather than definitive proof of a causal, fertility-enhancing effect, and warrant confirmation in prospective controlled studies.
Mi, Y.; Garner, A.; Niang, M.; Hong, C.; Howell, S.; Herman, J.; Holloway, I.; Baral, S.
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Population size estimates (PSE) for gay, bisexual, and other cisgender men who have sex with men (GBMSM) remain difficult where stigma and criminalization limit data collection and HIV resource allocation. We aim to assess whether Google Trends and a gay social networking app can provide standardized, low-cost population size estimates (PSE) for gay, bisexual, and other cisgender men who have sex with men (GBMSM) in Senegal, Ghana, Mozambique, and Indonesia. We analyzed country-level and local GT relative search volumes for "porn" and "gay porn" from September 2024 to September 2025. Pornhub global review data were applied to produce proportional GBMSM PSEs. App estimates were derived from monthly active users and extrapolated to annual users. Proportional estimates were multiplied by the male population aged 15-49 years to obtain absolute PSE and compared with UNAIDS Key Population Atlas estimates. Sensitivity analyses used survey-based multipliers and alternative search-term combinations. GTPSE ranged from 0.37% in Mozambique to 1.92% in Indonesia, while app-based estimates ranged from 0.29% in Mozambique to 1.34% in Ghana. GTPSE exceeded UNAIDS estimates in Ghana, Mozambique, and Indonesia. App-based estimates exceeded UNAIDS estimates in Ghana and Mozambique. Maputos estimated GBMSM proportion was substantially higher than Mozambiques national estimate. GTPSE generally exceeded UNAIDS estimates, which may reflect underestimation in stigmatizing settings where GBMSM are less likely to be reached through field-based methods or mainstream health services. Social network app estimates were lower in some countries, highlighting variability in platform access and geographic differences in the concentration of social networks. Internet-derived data may offer a low-cost, feasible approach to GBMSM PSE in low- and middle-income settings. Further validation through digital data linkages could strengthen HIV prevention and treatment planning.
Kasamatsu, A.; Ohama, Y.; Tomo, Y.; Imai, K.; Nakayama, S.-i.; Omori, R.; Yamagishi, T.; Yasuda, M.; Akeda, Y.
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Background: Treponema pallidum quantitative polymerase chain reaction (qPCR) positivity and cycle threshold (Ct) by rapid plasma reagin (RPR), disease stage, and other characteristics are poorly characterized in routine-care specimens, leaving it unclear when qPCR of such specimens is informative for diagnosis. Methods: This Japanese multicenter cross-sectional study explored qPCR positivity and Ct by these characteristics. Nonblood specimens collected during routine care underwent qPCR at a central laboratory for this study. Bayesian logistic and normal regressions modeled positivity and mean Ct of TP0574 and polA with stage-specific continuous automated RPR terms, patient characteristics, collection site, and facility random intercepts. Estimates were standardized over the analyzed specimens. Population-group predictions were instead averaged within each group. Results: Among 154 nonblood specimens from 145 patients (71.7% non-MSM men and women) at 14 facilities, 109 (70.8%) were qPCR positive. At RPR 1, adjusted positivity was 72.2% (95% credible interval, 60.9%--82.9%) in primary and 43.8% (16.7%--69.9%) in secondary syphilis. Positivity showed a modest downward trend with RPR in primary but increased in secondary syphilis, reflecting a stage-by-RPR interaction (secondary-to-primary ratio of odds ratios, 1.78; 1.25--2.65). Predicted positivity showed an upward trend with RPR values among MSM; adjusted positivity was relatively high for genital/urethral/urinary and anal/perianal/rectal specimens. Adjusted mean Ct increased with RPR in primary and followed an inverted-U pattern in secondary syphilis. Conclusions: In primary syphilis, nonblood qPCR positivity was high even at low RPR. When serologic findings remain inconclusive in this stage, qPCR is highly recommended for securing an early diagnosis.
van Stokkom, H.; Dekker, L. P.; Pastoor, H.; Enthoven, C.
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BACKGROUND: Sexual pleasure is integral to sexual health, offering important physical and mental benefits. Yet, sex education programs often neglect pleasure, focusing instead on preventing sexual risk behaviors (SRBs), which young adults are particularly vulnerable to. AIM: This study investigates the association between SRBs and sexual pleasure in young adults and whether sex assigned at birth moderates this relationship. METHODS: Embedded within the Generation R cohort, 1010 young adults completed an online questionnaire assessing sexual pleasure using the six subscales of the Amsterdam Sexual Pleasure Inventory (ASPI 1.0), Arousal Enjoyment, Enjoyment-Related Self-Efficacy, Enjoyment-Related Self-Worth, Interaction Enjoyment, Bonding Enjoyment, and Sexual Experience Enjoyment, and various SRBs including sexual debut <15 years, six or more lifetime partners, frequent unprotected sex, and substance use during sex. Multiple linear regression analyses were performed for each SRB and sexual pleasure subscale, adjusting for demographics, self-esteem, relationship status, socioeconomic status, and psychopathology, with additional stratification by sex assigned at birth. OUTCOMES: The primary outcome measure is sexual pleasure, measured across six domains, examined in relation to SRBs. RESULTS: Fully adjusted regression analyses showed that engaging in SRB was positively associated with several dimensions of sexual pleasure. All SRBs were associated with higher Enjoyment-Related Self-Efficacy (ERSE) scores (p<0.002). Early sexual debut was additionally linked to higher Interaction Enjoyment scores, while having six or more lifetime partners was associated with increased Enjoyment-Related Self-Worth and Sexual Experience Enjoyment scores (p<0.002). Some associations, particularly involving ERSE, were only significant among males. Individuals without partnered sexual experience reported lower sexual pleasure scores. CLINICAL IMPLICATIONS: Incorporating sexual pleasure into sex education could promote a more balanced, realistic understanding of sexuality among young adults, emphasizing both enjoyment and responsible sexual decision-making. STRENGHTS & LIMITATIONS: Key strengths of this study are the use of the multidimensional Amsterdam Sexual Pleasure Inventory (ASPI 1.0) and the large population-based cohort study design, enabling a nuanced and generalizable analysis. This study is limited by potential selection and reporting bias, the cross-sectional design, residual confounding, and the absence of universally agreed-upon thresholds for defining SRBs. CONCLUSION: These findings suggest there is a positive association between engagement in SRB and sexual pleasure, possibly reflecting greater overall sexual experience. The stronger associations observed among males might reflect gendered differences in the role of self-esteem and societal expectations.
Mthembu, M.; Baisley, K.; Busang, J.; Ngoma, N.; Nonsikelelo, N.; Okesola, N.; Herbst, C.; Khoza, T.; Dreyer, J.; Liebenberg, L.; Ndhlovu, Z.; Shahmanesh, M.
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Background Human papillomavirus (HPV) is the primary cause of cervical cancer, with women living with HIV at increased risk of HPV infection and HPV related disease. Data on HPV prevalence and genotype distribution among adolescent girls and young women (AGYW) in rural South African settings remain limited. We estimated HPV prevalence, genotype distribution, and factors associated with HPV infection among AGYW in a high HIV prevalence district of KwaZulu Natal, South Africa. Methods This cross-sectional study was nested within the baseline survey of the Thetha Nami population-based trial among young people aged 15 to 30 years in rural uMkhanyakude District, KwaZulu-Natal. Survey participants were asked to provide dried blood spots for HIV testing and genital swabs for STI testing. For this study, we selected AGYW living with HIV with available vaginal swabs and a frequency-matched sample of AGYW without HIV. HPV genotyping was done using the HPV Direct Flow Chip Kit (Master Diagnostica, Spain). Genotype-specific HPV prevalence was described overall and by HIV status. Logistic regression was used to identify factors associated with HPV infection. Results Among 187 AGYW with valid HPV results, 90 (48.1%) were living with HIV. Overall HPV prevalence was 69.1% (95% confidence interval (CI)=54.5 to 80.7%) and high-risk (hr)HPV prevalence was 57.3% (95%CI=44.1 to 69.6%). HPV prevalence was higher among AGYW living with HIV than among AGYW without HIV (84.6% vs 64.6%, p=0.02). HPV genotype distribution varied by HIV status: HPV35, HPV45 and HPV58 were the most prevalent hrHPV genotypes among AGYW living with HIV, vs HPV52, HPV56 and HPV31 among AGYW without HIV. No HPV16 or HPV18 infections were detected among participants who were age-eligible for the national HPV vaccination programme. Reported condomless sex (adjusted odds ratio (aOR)=2.23, 95%CI=1.06 to 4.70) and the presence of another sexually transmitted infection (aOR=4.30, 95%CI=1.52 to 12.20) were associated with HPV infection. Conclusions AGYW in rural uMkhanyakude experience a high burden of hrHPV infection, especially those living with HIV. Regardless of HPV vaccination status not being confirmed, no HPV 16/18 was detected among vaccine-eligible AGYW. The higher prevalence of non-HPV16/18 hrHPV genotypes covered by the nonavalent vaccine highlights the potential value of vaccines with broader genotype coverage. These findings support expanding HPV screening and cervical cancer prevention programmes in high HIV prevalence settings.
Barbosu, C. M.; Manciuc, C. D.; Dye, T.
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HIV/AIDS remains a major global public health challenge, and disparities in HIV testing persist. In 2024, an estimated 87% of people living with HIV were aware of their status, with lower testing coverage among children aged 0-14 years (63%), and among men (84%) compared with women (92%). Romania initiated its national AIDS program in 1995 and quickly progressed in addressing the epidemic; however, HIV testing remains largely concentrated in specialized services, with late diagnosis, missed testing opportunities, and stigma continuing to limit timely identification and linkage to care. This study aimed to understand better HIV testing/screening practices among clinicians in eastern Romania and to identify gaps that could be addressed through medical education. We conducted an analytical cross-sectional study among healthcare providers in the eastern region of Romania to assess whether HIV testing is routinely offered to patients, explore gaps in clinical judgment and perceived responsibility, and identify factors that facilitate HIV testing. A 17-question anonymous survey was distributed via WhatsApp to clinician groups between August 1 and September 30, 2023. Respondents included physicians (71.9%), nurses (28.1%), and other healthcare professionals, working in infectious diseases (36.0%), internal medicine (22.3%), primary care (13.7%), and other specialties, such as obstetrics-gynecology and pediatrics (18.0%). Only 38.1% of respondents reported routinely screening all patients aged 18 years and older for HIV, while 61.9% did not offer regular HIV testing. The most cited reasons for not screening were the perception that HIV testing was not their responsibility and that their department did not require testing (18.1% each). Clinicians working in settings with established policies on HIV confidentiality, non-discrimination, testing, and post-exposure prophylaxis were more likely to offer routine testing. Universal HIV screening remains uncommon among clinicians in eastern Romania. Supportive institutional policies appear to facilitate routine testing and may reduce missed opportunities for early diagnosis. Normalizing HIV testing as part of routine clinical care, in line with the Romanian National Health Strategy 2022-2030, is crucial for enhancing early detection and strengthening prevention efforts through coordinated action among clinicians, public institutions, and civil society.
Martinson, E.; Lewis, E. L.; Newton, S.; Carlson, J. M.; Miele, K.; O'Callaghan, K. P.; Anderson, B.; Falzarano, T.; Levin, T. R.; Jayroe, M.; Johnson, C. M.; Longcore, N. D.; Berryhill, A.; Willabus, T.; Woodworth, K. R.; Tong, V. T.
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Pregnant women with late latent or latent of unknown duration syphilis are recommended to receive three doses of benzathine penicillin G each 9 or fewer days apart; data on interval variations are limited. We found no significant difference in risk of congenital syphilis between 9-day and 6-8 day dosing intervals.
Lee, Y. G.; Nevendorff, L.; Reswana, W.; Wong, T. Y.; Yang, X.; Xu, Y.; Yang, C.; Huang, Y.; Oktavianus, J.; Wu, E.
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Background Men who have sex with men (MSM) in the Jakarta Metropolitan Area (JMA), Indonesia are disproportionately affected by HIV. Pre-exposure prophylaxis (PrEP) is a viable strategy for addressing enduring HIV disparities, yet remains underutilized among MSM in the JMA. Patterns and influences of PrEP use may inform future intervention targets but have not been extensively studied in this context. Methods Guided by the Andersen's Behavioral Model for Health Services Use, the present study investigated multidimensional correlates of varied PrEP use patterns among 183 JMA-based MSM aged 18-51 (median age=29) and at elevated risk of HIV infection. The multinomial regression model identified factors associated with current PrEP use and some use in the past, compared with never use (reference category). Results In the present study, 107 (58%) participants reported never use, 34 (19%) current use, and 42 (23%) some use of PrEP. Current PrEP use was negatively associated with HIV stigma and positively with perceived social support, online HIV information seeking, and sexualized drug use. Some PrEP use was negatively associated with HIV stigma and positively with online HIV information seeking. Conclusions The study findings provide support for the Andersen model's emphasis on predisposing characteristics, enabling resources, and need factors when tailoring PrEP implementation for higher-risk MSM in the JMA. Addressing stigma, reinforcing social support and HIV knowledge, and integrating PrEP care within multiple health care systems appear viable avenues for improving PrEP adoption in this key population.
Jiba, D. F.; Baldeh, M.; Turay, P.; Kanu, S.; Kamara, M. N.; Farma-Grant, L. M. L.; Barrie, U.; Awonuga, W. O.; Baio, M. M.; Sesay, D.; Shehab, D.; Sinnah, R.; Namanga, E. S.; Johnson, P. M. D.; Lakoh, S.; Dykens, J. A.
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ObjectiveTo assess the knowledge, willingness and barriers to human papillomavirus (HPV) vaccination among caregivers of adolescent girls living with HIV in Sierra Leone. MethodsThis cross-sectional study examined HPV vaccine knowledge, willingness, and barriers among 249 caregivers of adolescent girls living with HIV in Sierra Leone. Data were collected through structured questionnaires at public tertiary hospitals and high-volume HIV clinics, and associations were assessed using chi-square tests, logistic regression, and Kruskal-Wallis analyses. ResultsOnly 32.1% (80/249) of caregivers had heard of HPV, with even fewer aware of its link to cervical cancer (24.4%, 60/246) or prevention methods of cervical cancer (31.9%, 79/248). Misconceptions were prevalent; 16.3% (36/221) erroneously linked oral contraceptives to cervical cancer, and 61.1% (44/72) of caregivers unwilling to vaccinate cited distrust in vaccine efficacy. While tertiary-educated caregivers exhibited the highest level of knowledge (45.5%, p < 0.001), their willingness to vaccinate (50%, 33/66) was comparable to that of less-educated groups, highlighting a knowledge-action gap. Structural barriers dominated, with 66.1% (154/233) citing unawareness of the vaccine and 10.3% (24/233) missing school-based vaccination days. Relationship dynamics significantly influenced willingness: extended family members showed the highest willingness (69.4%, p = 0.029), whereas grandparents were least willing (31%, 9/29). Although systemic gaps such as disrupted vaccination services, vaccine supplies and cold chain limited uptake, healthcare workers emerged as the most effective information source (rank sum = 889.5, p = 0.039). ConclusionThe study highlights the need for culturally tailored education to dispel myths and community-driven strategies engaging trusted actors like healthcare workers and extended families. This study justifies the need for integration of HPV vaccination and cervical cancer screening into HIV care services.
Willemstein, I. J. M.; Prins, M.; Heijne, J. C. M.; Davidovich, U.; Schim van der Loeff, M. F.; Chaname Pinedo, L.; Akwiwu, E. U.; van Benthem, B.; Hoornenborg, E.; Jongen, V. W.
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Background Clinical trials demonstrated high efficacy of daily and event-driven oral pre-exposure prophylaxis (PrEP) in HIV prevention. Event-driven PrEP involves taking two tablets before and two times one tablet after sexual contact (2-1-1/on-demand). While both are implemented in Dutch clinical practice, evaluating real-world effectiveness requires large-scale data from routine clinical care. This study compared HIV incidence between daily and event-driven PrEP in the Netherlands. Methods We used surveillance data from the Dutch national PrEP program (August 1, 2019-December 31, 2025). Individuals [≥]16 years with [≥]1 follow-up consultation after PrEP initiation were included; PrEP regimen since last visit was recorded at each visit. Person-time was modeled as time-varying based on the regimen reported at each consultation. HIV incidence rates were calculated per 100 person-years and Cox proportional hazards models estimated hazard ratios between regimens for HIV acquisition, adjusted for sociodemographics, sexual behavior, and history of sexually transmissible infections. Findings 16,469 individuals (15,843 men who have sex with men, 579 transgender and gender diverse persons, 45 women and two men who have sex with women) initiated PrEP and had [≥]1 follow-up visit (median follow-up 2.0 years (IQR=0.8-4.0)). Median age was 33 years (IQR=27-44). 49 PrEP users were diagnosed with HIV over 41,092 person-years (IR=0.12/100 py;95%CI=0.09-0.16), of whom 42 event-driven users (IR=0.20/100 py;95%CI=0.15-0.27) and seven daily PrEP users (IR=0.04/100 py;95%CI=0.02-0.07). In multivariable Cox regression, event-driven PrEP use was associated with a higher hazard of HIV acquisition (aHR=7.0;95%CI=3.0-16.4). Interpretation Despite overall low HIV incidence, the incidence rate in the Dutch national PrEP program was seven-fold higher during event-driven PrEP use compared to daily, which may be due to lower adherence. These findings denotes that, in real-world settings, improved person-centered counseling is needed for individuals interested in, or using event-driven PrEP. Research should identify domains and preferred methods of support. Funding None for this study.
Bola-Oyebamiji, S.; Awowole, I. O.; Adeyemo, S. C.; Oyeniran, A. O.; Bamkefa, T. A.; Olatunji, B. Y.; Adekanle, D. A.; Olabode, E. D.
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Background Women living with Human Immunodeficiency Virus (WLHIV) are at high risk of cervical cancer. While Human Papilloma Virus Deoxyribonucleic acid (HPV DNA) testing is the standard of care, its cost limits widespread use in resource-limited settings, therefore visual inspection with acetic acid (VIA) remains the primary screening method. This study therefore evaluated the diagnostic accuracy of VIA compared to HPV DNA testing for cervical cancer screening among WLHIV in Nigeria. Methods This cross-sectional analytical study was conducted between November 2022 and November 2024 in Osogbo, Nigeria among 300 WLHIV on antiretroviral therapy aged 25-49 years underwent cervical cancer screening using VIA and HPV DNA testing (Ampfire HPV test kits, ATILA Biosystems(R) USA). All 309 participants underwent colposcopy and biopsy regardless of their screening results, with histological examination serving as the gold standard. Data were analyzed using Stata, with diagnostic performance measures calculated using histology as the gold standard. Results The mean age of participants was 42.6 {+/-} 6.4 years. Thirty-six of 309 women (11.7%) were VIA-positive, while 91 (29.4%) were HPV-positive. Histology confirmed CIN2+ in 22 participants (7.1%). HPV testing demonstrated significantly higher sensitivity than VIA for detecting CIN2+ (91.2%, 95% CI: 76.3-98.1 vs. 44.1%, 95% CI: 26.7-62.6; p<0.001) and higher negative predictive value (98.9%, 95% CI: 96.3-99.8 vs. 92.0%, 95% CI: 88.0-95.0; p<0.001). However, VIA showed higher specificity (91.7%, 95% CI: 87.8-94.7 vs. 83.3%, 95% CI: 78.4-87.6; p=0.003). The agreement between the two tests was fair (kappa = 0.20, p<0.001). Both HPV positivity (adjusted OR: 42.1, 95% CI: 9.5-186.2; p<0.001) and VIA positivity (adjusted OR: 6.9, 95% CI: 2.6-18.4; p<0.001) were independently associated with CIN2+. Conclusion HPV DNA testing demonstrated superior sensitivity and negative predictive value compared to VIA for detecting CIN2+ among WLHIV, while VIA showed higher specificity. Keywords: Cervical cancer screening, visual inspection with acetic acid, Human Papilloma Virus Women living with HIV, Nigeria
Savas, L.; Pekok, A. U.; Pekok, B. S.; Eser, Z. S.
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Aim: Brucellosis remains endemic throughout the Mediterranean basin, the Middle East and Central Asia. Genitourinary involvement is an uncommon but clinically consequential focal complication that closely mimics urological emergencies and may precipitate unnecessary surgery. Contemporary data describing its frequency, laboratory signature and treatment outcomes in endemic settings remain limited. Material-Methods: We retrospectively screened all adults ([≥]18 years) with confirmed brucellosis managed at a tertiary infectious diseases unit between January 2008 and December 2020. Genitourinary involvement was defined as epididymo-orchitis, orchitis, epididymitis and/or brucellar pyelonephritis. Clinical, laboratory, ultrasonographic, therapeutic and outcome variables were abstracted using a standardised form. Proportions are reported with Wilson score 95% confidence intervals (CI). Reporting followed the STROBE statement. Result: Genitourinary involvement was identified in 18 of 125 patients with brucellosis (14.4%; 95% CI 9.3-21.6); 16 (88.9%) were men and the mean age was 35.2 years (range 22-62). Scrotal disease dominated the male presentation: epididymo-orchitis in 10 of 16 men (62.5%; 95% CI 38.6-81.5), orchitis in 4 (25.0%) and epididymitis in 2 (12.5%). Both women presented with pyelonephritis, one of whom developed a tubo-ovarian abscess requiring drainage. Constitutional features were near-universal (fatigue 100%, night sweats 88.9%, fever 77.8%). Leukocyte counts remained within the reference interval in every patient (mean 5,680/mm3), whereas erythrocyte sedimentation rate (mean 32 mm/h) and C-reactive protein (mean 24.2 mg/L) were only mildly to moderately raised. The Coombs anti-Brucella test was positive in 18 of 18 patients (100%) and the standard agglutination test in 17 of 18 (94.4%), whereas blood culture yielded Brucella melitensis in only 1 of 18 (5.6%). Concomitant extragenitourinary focal disease was present in 8 patients. All patients received doxycycline plus rifampicin; none required modification of the regimen or orchiectomy, and no treatment failure occurred (0 of 18; 95% CI 0-17.6). Median follow-up was 12 weeks (range 6-52) and no relapse was documented within this interval. Conclusions: In endemic regions, genitourinary brucellosis should be suspected in any patient with acute scrotal or flank symptoms accompanied by constitutional complaints, even when the leukocyte count is normal and acute-phase reactants are only marginally elevated. Coombs anti-Brucella serology rather than blood culture is the diagnostic cornerstone, and prompt doxycycline-rifampicin therapy averts surgical intervention.
Brazier, E.; Maruri, F.; Duda, S. N.; Wools-Kaloustian, K.; Freeman, A.; Musick, B.; Arabadjis, S.; Ballif, M.; Fernandez Villalobos, N. V.; Kuniholm, M. H.; Lancaster, K.; Lujintanon, S.; Parcesepe, A. M.; Pellegrino, R. A.; Ramos Menchelli, A. F.; Ross, J.; Ross, J.; Semeere, A.; Nash, D.
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Introduction: HIV care and treatment programs around the world continue to evolve in response to changes in clinical guidelines, evidence-based practices, domestic and donor funding for the HIV response, new technological developments, and changing weather patterns. Since 2009, the International epidemiology Databases to Evaluate AIDS (IeDEA) research consortium has conducted periodic surveys to document the characteristics of participating clinics and the availability of HIV-related services across diverse settings -- information that provides important context for understanding variations and trends in HIV care outcomes. This paper describes the protocol for IeDEA's 2026 site assessment survey, launched in August 2026. Methods and analysis: This cross-sectional descriptive study aims to document HIV-related services and practices among clinics in 42 countries. The survey explores the characteristics and services provided at HIV care and treatment sites participating in IeDEA in 2026, along with real-world adoption and implementation of evidence-based service delivery strategies for people living with or at risk of HIV. Designed for self-administration, the survey questionnaire was developed through two complementary processes: a review of questions and data collected through IeDEA' prior consortium-wide surveys and an open call to IeDEA investigators for new survey content to advance a timely implementation science agenda relevant to the global HIV community. Survey materials and links to an online REDCap questionnaire will be distributed to 232 eligible clinics across IeDEA in September 2026, with a deadline of November 30, 2026, for completion. Planned analyses will examine the following topics: HIV care amidst funding constraints; the roll-out of differentiated service delivery models; pre-exposure HIV prophylaxis; long-acting injectable antiretroviral therapy (ART); prevention, screening and/or treatment services for viral hepatitis, mental health and substance use disorders, cardiovascular disease, and cancers among PLHIV; the integration of HIV care with other health services; and clinic vulnerability to extreme weather events. Ethics and dissemination: A "non-human subjects" research designation was determined by the Vanderbilt University Medical Center Human Research Protections Program. Survey findings will be shared with local partners and stakeholders across IeDEA, disseminated at regional and global conferences, and published in peer-reviewed journals.
McGowan, M.; Maswera, R.; Chisvo, L.; Moorhouse, L.; Dzamatira, F.; Mandizvidza, P.; Tsenesa, B.; Otambo, W.; Inghels, M.; Harling, G.; Mee, P.; Baernighausen, T.; Gregson, S.; Nyamukapa, C.; Tanser, F.; Skovdal, M.
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Introduction: HIV testing and pre-exposure prophylaxis (PrEP) are efficacious HIV prevention strategies, but uptake remains low among Sub-Saharan African men. Peer-delivered approaches may improve engagement. We developed an intervention combining peer-delivered oral HIV self-testing (HIVST) with incentivized peer referral to HIV services and an SMS-based HIV risk assessment among men in eastern Zimbabwe (IMPERATIVE Trial: NCT06370923). We co-adapted the intervention through iterative prototyping (IP) to enhance its acceptability, feasibility, and potential effectiveness. Methods: From November 2023 to June 2024, we implemented a novel IP framework to refine and test the intervention. Four primary distributors (PDs) were trained to deliver HIVSTs to three peers and refer them to clinic services. Peers could become secondary distributors (SDs), obtain HIVSTs from community hubs and distribute them further. Qualitative data were collected alongside intervention testing to adapt the intervention over two iterations. Activities included three forum theatre workshops, one community advisory board meeting, 25 in-depth interviews, four focus group discussions, and eight observational reports involving men, implementers, stakeholders, and advisory board members. Additionally, 20 men completed baseline and one-week follow-up surveys. Quantitative data were analysed descriptively; qualitative data were analysed using thematic analysis. Results: During testing, HIVST uptake was 100% among PDs, 90% among PD-recruited peers, and 63% among SD-recruited peers. Among self-testers, 50% sought confirmatory testing and about one-quarter initiated PrEP (PDs 25%, PD-recruited peers 30%, SD-recruited peers 25%). Participants viewed the intervention positively and anticipated increased HIV testing and PrEP initiation. Four areas for refinement were identified: recruitment, information dissemination, incentives, and socio-cultural factors. Participant recommendations were adopted before randomised controlled trial testing. Conclusion: Peer-delivered HIVST with referral to HIV services shows promise for engaging Zimbabwean men. The IP framework incorporating participant recommendations enhanced intervention design and delivery within the IMPERATIVE trial. This methodology may inform future intervention development in similar settings.
Garcia Senan, A. I.; Arenaza Lamo, E.; Davila Exposito, A.; Arruti Martin, M.; Comba Miranda, J. W.; del Valle Pena, D.; Ramos Trivino, M. R.; Palomo Cousido, S.; Dominguez Eguizabal, B.; Cortes Antolin, M.; Puente Martinez, M. J.; Zudaire Fuertes, T.; Sola Gallego, J. J.; Ruiz Sanchez, C.; Gil, H.; Spanish HPV Vaccine Impact Study Group,
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Data evaluating human papillomavirus (HPV) vaccine impact in Spain remain limited. We aimed to assess HPV and cytology findings among vaccinated and unvaccinated women as an early indicator of its effectiveness. During April 2024-January 2026, a total of 908 women participating in a population-based cervical cancer screening in three regions of Spain were recruited (58% vaccinated). Cervical samples and epidemiological and vaccination data were obtained. HPV was detected in 37% (337/908) and high-risk HPV in 24% (221/908). High-grade cytological lesions (1.2%, 11/907) were more frequent in unvaccinated women (2.4% vs 0.38%, p=0.011) and showed higher prevalence of HPV 16/18 (5.5% vs 0.76%; aOR: 4.9; 95% CI: 1.4-17) and HPV31 (3.4% vs 1.3%; aOR: 2.7; 95% CI: 1.0-6.9) compared with vaccinated women. HPV51 and HPV70 were more frequent among vaccinated women; however, both were associated with factors unrelated to vaccination. HPV51 was linked to a higher number of sexual partners (aOR: 2.6; 95% CI: 1.2-5.6), while HPV70 to smoking (aOR: 0.36; 95% CI: 0.13-0.99). Lower detection of HPV 16/18, HPV31 and high-grade lesions among vaccinated women supports vaccine effectiveness and cross-protection, highlighting the importance of continuous comprehensive surveillance of HPV genotype, including epidemiological and sexual behavioral factors.
Gigi, R. M.; Mdingi, M. M.; Jung, H.; Braunack-Mayer, L.; Mensah, E.; Rossel, J.-B.; Babalola, C. M.; Muzny, C. M.; Taylor, C. M.; Medina-Marino, A.; Klausner, J. D.; van de Wijgert, J. H.; Peters, R. P.; Low, N.
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Background: Sexually transmitted infections (STIs) and vaginal dysbiosis during pregnancy are associated with adverse pregnancy outcomes. Mycoplasma genitalium is the most recent STI implicated but evidence remains limited. The objectives of this study were to investigate 1) the association between M. genitalium infection during pregnancy and gestational age at delivery, preterm birth, miscarriage or stillbirth, and low birth weight and 2) the interaction with vaginal dysbiosis. Methods: We conducted a prospective cohort study in East London, South Africa. We enrolled pregnant women at gestational age <27 weeks, confirmed by ultrasound. We tested vaginal samples using nucleic acid amplification tests for M. genitalium, Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, other genital mycoplasmas and Candida spp. We defined vaginal dysbiosis using Gram-stain criteria as a Nugent score 4-10. We used quantile regression to compare the outcome in women with and without M. genitalium across the gestational age distribution, adjusting for prespecified sociodemographic and clinical characteristics and co-occurring organisms. Results: From April 1, 2021 to August 29, 2023, we enrolled 603 women, followed up 584 and obtained pregnancy outcomes for 560 (93%). Median age was 28 years (interquartile range, IQR 24, 33) and 27% of women were living with HIV. M. genitalium was detected in 44/584 (8%, 95% CI 6, 10%) and vaginal dysbiosis in 375/584 (64%) of women. Median gestational age at delivery was 39 weeks +0 days (IQR 37+4, 40+1) in women with and 39 weeks +0 days (37+4, 40+0) in those without M. genitalium. In multivariable models, associations were not observed for any adverse birth outcomes. There was no interaction between M. genitalium and vaginal dysbiosis. Discussion: M. genitalium in pregnancy was not associated with earlier gestational age at delivery or with other adverse birth outcomes. These findings do not support routine testing and treatment for M. genitalium in pregnancy.