Gaps in the prevention of mother-to-child transmission of syphilis: a review of reported cases, South Africa, January 2020-June 2022.

INTRODUCTION: Congenital syphilis (CS) is preventable through timely antenatal care (ANC), syphilis screening and treatment among pregnant women. Robust CS surveillance can identify gaps in this prevention cascade. We reviewed CS cases reported to the South African notifiable medical conditions surveillance system (NMCSS) from January 2020 to June 2022. METHODS: CS cases are reported using a case notification form (CNF) containing limited infant demographic and clinical characteristics. During January 2020-June 2022, healthcare workers supplemented CNFs with a case investigation form (CIF) containing maternal and infant testing and treatment information. We describe CS cases with/without a matching CIF and gaps in the CS prevention cascade among those with clinical information. FINDINGS: During January 2020-June 2022, 938 CS cases were reported to the NMCSS with a median age of 1 day (interquartile range: 0-5). Nine percent were diagnosed based on clinical signs and symptoms only. During January 2020-June 2022, 667 CIFs were reported with 51% (343) successfully matched to a CNF. Only 57% of mothers of infants with a matching CIF had an ANC booking visit (entry into ANC). Overall, 87% of mothers were tested for syphilis increasing to 98% among mothers with an ANC booking visit. Median time between first syphilis test and delivery was 16 days overall increasing to 82 days among mothers with an ANC booking visit. DISCUSSION: Only 37% of CS cases had accompanying clinical information to support evaluation of the prevention cascade. Mothers with an ANC booking visit had increased syphilis screening and time before delivery to allow for adequate treatment.

Untreated maternal syphilis has devastating consequences for the foetus. Congenital syphilis (CS) is preventable through timely maternal screening and treatment with robust surveillance. We evaluated CS surveillance data to identify gaps in CS surveillance and in the prevention cascade in South Africa.

Factors associated with an unsuppressed viral load among HIV-positive individuals attending STI services in South Africa, 2019.

BACKGROUND: Sexually transmitted infections (STIs), particularly in the absence of viral suppression, increase the risk of HIV transmission to uninfected partners. We determined factors associated with having an unsuppressed VL among HIV-positive individuals attending STI services in South Africa (SA). METHODS: We analysed secondary cross-sectional data collected on HIV-positive individuals presenting with STI symptoms s at sentinel sites in Western Cape and Gauteng provinces between January-December 2019 in SA. We compared demographic characteristics of individuals on ART or not on ART, and a Poisson regression model to identify factors associated with having an unsuppressed VL (≥ 50 copies/ml) was used. RESULTS: Among 93 HIV-positive individuals attending STI services with VL data, the median age was 32 years (IQR 27-37). Thirty-two (34.41%) individuals were on ART compared to 61 (65.59%) not on ART. Most of those on ART (56.25%) had an unsuppressed VL, while 86.89% of those not on ART had an unsuppressed VL. ART use was associated with a 33% lower prevalence of having unsuppressed VL. In a model adjusting for age, age at first sex and oral sex, none of the factors were significant. Among those on ART, individuals < 25 years were more likely to have an unsuppressed VL (aPRR = 1.94: 95% CI = 1.27-2.97) compared to those ≥ 25 years. CONCLUSION: ART use among HIV-positive individuals was low and VL suppression among those on ART was sub-optimal. Intensified ART initiation and adherence support to HIV-positive individuals seeking STI services could improve VL suppression.

Point-of-care testing for sexually transmitted infections and HIV pre-exposure prophylaxis among pregnant women in South Africa, 2021-2022: randomised controlled trial.

OBJECTIVE: Pregnant and postpartum women (PPW) in Southern Africa are at increased risk of acquiring HIV and curable sexually transmitted infections (STIs). Oral pre-exposure prophylaxis (PrEP) is safe and effective to use during pregnancy to reduce HIV acquisition and vertical transmission. Point-of-care (POC) STI testing can identify PPW at risk of HIV and facilitate risk-differentiated and person-centred counselling to improve PrEP initiation, persistence and adherence. We evaluated the impact of POC STI testing compared with STI syndromic management on PrEP outcomes among PPW in Cape Town, South Africa. METHODS: The STI and PrEP in Pregnancy Study enrolled PPW without HIV and ≤34 weeks pregnant at their regular antenatal care visit with follow-up after 1 month. PPW were randomised to receive POC STI testing or STI syndromic management. PPW randomised to POC STI testing self-collected vaginal swabs for Chlamydia trachomatis, Neisseria gonorhoeae and Trichomonas vaginalis (Cepheid GeneXpert) testing and were offered same-day treatment if diagnosed. We compared PrEP initiation at baseline, PrEP prescription refill at 1 month (persistence) and adherence through tenofovir-diphosphate detection in dried blood spots by randomisation arm. In a secondary analysis, we evaluated the association between an STI diagnosis (positive STI test or reporting STI symptoms) with PrEP outcomes. RESULTS: We enrolled and randomised 268 pregnant women. Twenty-eight per cent of women were diagnosed with ≥1 STI. Overall, 65% of women initiated and 79% persisted on PrEP with no significant differences by randomisation arm. Secondary analysis demonstrated that an STI diagnosis (positive STI test or reporting STI symptoms) was associated with higher PrEP initiation (adjusted relative risk=1.28; 95% CI 1.08 to 1.52), controlling for arm, maternal and gestational age. CONCLUSIONS: POC STI testing was not associated with PrEP initiation or persistence relative to syndromic management. However, improving STI diagnosis by supplementing syndromic management with POC STI testing could improve PrEP initiation among PPW. TRIAL REGISTRATION NUMBER: NCT03902418; Clinical Trials.gov; 1 April 2019.

Integration of HIV pre-exposure prophylaxis (PrEP) services for pregnant and breastfeeding women in eight primary care clinics: results of an implementation science study.

Background: Although HIV vertical transmission (VT) has declined significantly in sub-Saharan Africa, incident HIV infection in pregnant and postpartum women is estimated to account for roughly one-third of VT. Oral pre-exposure prophylaxis (PrEP) for pregnant and breastfeeding women (PBFW) is part of the recommended guidelines in South Africa since 2021; however, integration of PrEP services within antenatal (ANC) and postnatal care (PNC) remains limited. Methods: Between March 2022 and September 2023, we evaluated the acceptability, feasibility and sustainability of integrating PrEP for PBFW in high-HIV prevalence clinics after training and mentoring health care providers (HCP). We used the Reach Effectiveness-Adoption Implementation Maintenance (RE-AIM) framework to evaluate the intervention. Acceptability and maintenance were defined as the proportion of PBFW without HIV who initiated PrEP and the proportion of women continuing PrEP at 3 months in ANC or PNC services. Feasibility was defined as the proportion of trained HCPs (HIV lay counsellors and nurses/ midwives) who provided PrEP according to national guidelines, measured through post-training surveys and in-service assessments. Sustainability was defined as number of facilities and providers that continued to provide PrEP for PBFW past the mentoring period. Results: In 8 facilities providing ANC and PNC, we trained 224 HCP (127 nurses and 37 counsellors). Of those, we mentored 60 nurses, midwives and HIV counsellors working with PBFW, with 72% of nurse/midwives and 65% of counsellors scoring over 8/10 on the final mentoring assessment Overall, 12% (1493/12,614) of HIV-negative pregnant women started PrEP and 41% of those continued PrEP at 3-months. Among the HIV-negative breastfeeding women in postnatal care, 179/1315 (14%) initiated PrEP and 25% continued PrEP at 3-months. All 8 facilities continued providing PrEP 3-months after handover of the clinics. Conclusion: Integration of PrEP services in ANC and services for breastfeeding women was feasible, acceptable and sustainable. Acceptability and PrEP continuation showed improvement over time. Barriers to the PrEP integration were observed including the lack of regular HIV testing of breastfeeding mothers and need for ART-trained nurses to prescribe PrEP. Enablers included motivated and dedicated staff.

Vaccine value profile for Neisseria gonorrhoeae.

Neisseria gonorrhoeae infection (gonorrhoea) is a global public health challenge, causing substantial sexual and reproductive health consequences, such as infertility, pregnancy complications and increased acquisition or transmission of HIV. There is an urgency to controlling gonorrhoea because of increasing antimicrobial resistance to ceftriaxone, the last remaining treatment option, and the potential for gonorrhoea to become untreatable. No licensed gonococcal vaccine is available. Mounting observational evidence suggests that N. meningitidis serogroup B outer membrane vesicle-based vaccines may induce cross-protection against N. gonorrhoeae (estimated 30%-40% effectiveness using the 4CMenB vaccine). Clinical trials to determine the efficacy of the 4CMenB vaccine against N. gonorrhoeae are underway, as are Phase 1/2 studies of a new gonococcal-specific vaccine candidate. Ultimately, a gonococcal vaccine must be accessible, affordable and equitably dispensed, given that those most affected by gonorrhoea are also those who may be most disadvantaged in our societies, and most cases are in less-resourced settings. This vaccine value profile (VVP) provides a high level, holistic assessment of the current data to inform the potential public health, economic and societal value of pipeline vaccines. This was developed by a working group of subject matter experts from academia, non-profit organizations, public private partnerships and multi-lateral organizations. All contributors have extensive expertise on various elements of the N. gonorrhoeae VVP and collectively aimed to identify current research and knowledge gaps. The VVP was developed using published data obtained from peer-reviewed journals or reports.

An agent-based model of binge drinking, inequitable gender norms and their contribution to HIV transmission, with application to South Africa.

BACKGROUND: Binge drinking, inequitable gender norms and sexual risk behaviour are closely interlinked. This study aims to model the potential effect of alcohol counselling interventions (in men and women) and gender-transformative interventions (in men) as strategies to reduce HIV transmission. METHODS: We developed an agent-based model of HIV and other sexually transmitted infections, allowing for effects of binge drinking on sexual risk behaviour, and effects of inequitable gender norms (in men) on sexual risk behaviour and binge drinking. The model was applied to South Africa and was calibrated using data from randomized controlled trials of alcohol counselling interventions (n = 9) and gender-transformative interventions (n = 4) in sub-Saharan Africa. The model was also calibrated to South African data on alcohol consumption and acceptance of inequitable gender norms. Binge drinking was defined as five or more drinks on a single day, in the last month. RESULTS: Binge drinking is estimated to be highly prevalent in South Africa (54% in men and 35% in women, in 2021), and over the 2000-2021 period 54% (95% CI: 34-74%) of new HIV infections occurred in binge drinkers. Binge drinking accounted for 6.8% of new HIV infections (0.0-32.1%) over the same period, which was mediated mainly by an effect of binge drinking in women on engaging in casual sex. Inequitable gender norms accounted for 17.5% of incident HIV infections (0.0-68.3%), which was mediated mainly by an effect of inequitable gender norms on male partner concurrency. A multi-session alcohol counselling intervention that reaches all binge drinkers would reduce HIV incidence by 1.2% (0.0-2.5%) over a 5-year period, while a community-based gender-transformative intervention would reduce incidence by 3.2% (0.8-7.2%) or by 7.3% (0.6-21.2%) if there was no waning of intervention impact. CONCLUSIONS: Although binge drinking and inequitable gender norms contribute substantially to HIV transmission in South Africa, recently-trialled alcohol counselling and gender-transformative interventions are likely to have only modest effects on HIV incidence. Further innovation in developing locally-relevant interventions to address binge drinking and inequitable gender norms is needed.

Evaluation of the rubella surveillance system in South Africa, 2016-2018: A cross-sectional study.

BACKGROUND: Rubella is a leading vaccine-preventable cause of birth defects. We conducted this study to evaluate the rubella surveillance system in South Africa from 2016 to 2018. The rubella surveillance system had not been evaluated since its inception; therefore, a formal evaluation is necessary to assess key attributes and to ascertain the extent to which the system achieves its objectives. METHODS: We conducted a cross-sectional study to assess the usefulness, simplicity, positive predictive value, timeliness, and data quality of the rubella surveillance system from 2016 to 2018. We reviewed retrospective rubella surveillance data and conducted a survey with key stakeholders of the system. We compiled a summary report from the survey and calculated the annualized detection rate of rubella and non-rubella febrile rash, positive predictive value, the proportion of complete records, and timeliness between the surveillance steps. We compared our results with recommended performance indicators from the 2015 revised World Health Organization African regional guidelines for measles and rubella surveillance. RESULTS: The rubella surveillance system was useful but weak in terms of simplicity. The annualized detection rate of rubella febrile rash was 1.5 per 100,000 populations in 2016, 4.4 in 2017, and 2.1 in 2018. The positive predictive value was 29.1% in 2016, 40.9% in 2017, and 32.9% in 2018. The system did not meet the timeliness goal in the health facility component but met this goal in the laboratory component. The system had poor data quality, particularly in the health facility component. CONCLUSIONS: The rubella surveillance system was useful, although it was not simple to use and had low PPV, poor timeliness, and poor data quality. Efforts should be made to improve the system's simplicity, PPV, timeliness, and data quality at the facility level.

Point-of-Care Sexually Transmitted Infection Testing Improves HIV Preexposure Prophylaxis Initiation in Pregnant Women in Antenatal Care in Cape Town, South Africa, 2019 to 2021.

Preexposure prophylaxis (PrEP) programs present a platform for diagnostic sexually transmitted infection (STI) testing in low- and middle-income countries, and availability of targeted STI testing has been hypothesized to influence PrEP use. We evaluated the association of STI testing modality and PrEP uptake among pregnant women in antenatal care. We enrolled pregnant, HIV-uninfected women (16 years or older) at their first antenatal visit with follow-up through 12 months postpartum. Women were offered oral PrEP and tested for Chlamydia trachomatis and Neisseria gonorrhoeae using a point-of-care (POC; Cepheid, August 2019­November 2020) or laboratory-based (Thermofisher, December 2020­October 2021) test. We compared the proportion of women initiating and continuing PrEP by STI test adjusting for confounders. We evaluated 1194 women (median age, 26 years [interquartile range, 22­31 years]) with an STI result (46% POC and 54% laboratory-based). The prevalence of any STI was the same in POC-tested (28%) and laboratory-tested (28%) women­25% versus 23% for C. trachomatis ( P = 0.35) and 7% versus 9% for N. gonorrhoeae ( P = 0.11). Mean time from testing to result was 0 day for POC and 26 days for laboratory testing, and mean time from testing to treatment was 3 days for POC and 38 days for laboratory testing. Receiving a POC STI test was associated with higher PrEP initiation compared with women receiving a laboratory-based test (90% vs. 78%; adjusted odds ratio, 2.1; 95% confidence interval, 1.5­2.9), controlling for age, gravidity, STI diagnosis, intimate partner violence, gestational age, employment, HIV risk perception, and cohabiting status. Point-of-care STI testing, offering same-day results and treatment initiation, may increase PrEP initiation among pregnant women in antenatal care.

Factors Associated With Syphilis Transmission and Acquisition Among Men Who Have Sex With Men: Protocol for a Multisite Egocentric Network Study.

BACKGROUND: In the United States, the rates of primary and secondary syphilis have increased more rapidly among men who have sex with men (MSM) than among any other subpopulation. Rising syphilis rates among MSM reflect changes in both individual behaviors and the role of sexual networks (eg, persons linked directly or indirectly by sexual contact) in the spread of the infection. Decades of research examined how sexual networks influence sexually transmitted infections (STIs) among MSM; however, few longitudinal data sources focusing on syphilis have collected network characteristics. The Centers for Disease Control and Prevention, in collaboration with 3 sites, enrolled a prospective cohort of MSM in 3 US cities to longitudinally study sexual behaviors and STIs, including HIV, for up to 24 months. OBJECTIVE: The Network Epidemiology of Syphilis Transmission (NEST) study aimed to collect data on the factors related to syphilis transmission and acquisition among MSM. METHODS: The NEST study was a prospective cohort study that enrolled 748 MSM in Baltimore, Maryland; Chicago, Illinois; and Columbus, Ohio. NEST recruitment used a combination of convenience sampling, venue-based recruitment, and respondent-driven sampling approaches. At quarterly visits, participants completed a behavioral questionnaire and were tested for syphilis, HIV, gonorrhea, and chlamydia. The participants also provided a list of their sexual partners and described their 3 most recent partners in greater detail. RESULTS: The NEST participants were enrolled in the study from July 2018 to December 2021. At baseline, the mean age of the participants was 31.5 (SD 9.1) years. More than half (396/727. 54.5%) of the participants were non-Hispanic Black, 29.8% (217/727) were non-Hispanic White, and 8.8% (64/727) were Hispanic or Latino. Multiple recruitment strategies across the 3 study locations, including respondent-driven sampling, clinic referrals, flyers, and social media advertisements, strengthened NEST participation. Upon the completion of follow-up visits in March 2022, the mean number of visits per participant was 5.1 (SD 3.2; range 1-9) in Baltimore, 2.2 (SD 1.6; range 1-8) in Chicago, and 7.2 (SD 2.9; range 1-9) in Columbus. Using a community-based participatory research approach, site-specific staff were able to draw upon collaborations with local communities to address stigma concerning STIs, particularly syphilis, among potential NEST participants. Community-led efforts also provided a forum for staff to describe the NEST study objectives and plans for research dissemination to the target audience. Strategies to bolster data collection during the COVID-19 pandemic included telehealth visits (all sites) and adaptation to self-collection of STI specimens (Baltimore only). CONCLUSIONS: Data from NEST will be used to address important questions regarding individual and partnership-based sexual risk behaviors among MSM, with the goal of informing interventions to prevent syphilis in high-burden areas. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR1-10.2196/40095.

Exposure of South African Abattoir Workers to Coxiella burnetii.

Abattoir workers may contract Q fever by inhalation of Coxiella burnetii bacteria in aerosols generated by slaughtering livestock, or in contaminated dust. We estimated the seroprevalence of C. burnetii and examined the associated factors in a survey of South African abattoir workers. Coxiella burnetii seropositivity was determined by detection of IgG antibodies against C. burnetii phase II antigen. Logistic regression, adjusted for clustering and sampling fraction, was employed to analyze risk factors associated with C. burnetii seropositivity. Among 382 workers from 16 facilities, the overall seroprevalence was 33% (95% confidence interval (CI): 28-38%) and ranged from 8% to 62% at the facility level. Prolonged contact with carcasses or meat products (odds ratio (OR): 4.6, 95% CI: 1.51-14.41) and prior abattoir or butchery work experience (OR: 1.9, 95% CI: 1.13-3.17) were associated with C. burnetii seropositivity. In contrast, increasing age and livestock ownership were inversely associated. Precautions to protect abattoir personnel from Q fever are discussed.

Detection of Lymphogranuloma Venereum-Associated Chlamydia trachomatis L2 Serovars in Remnant Rectal Specimens Collected from 7 US Public Health Laboratories.

ABSTRACT: The frequency of lymphogranuloma venereum or invasive Chlamydia trachomatis infection with serovar L1, L2, or L3 is unknown in the United States. While no diagnostic test is commercially available, we used a laboratory-developed test and detected lymphogranuloma venereum-associated serovar L2 in 14% of 132 remnant C. trachomatis-positive rectal swabs.

Trends in the prevalence of microscopically-confirmed schistosomiasis in the South African public health sector, 2011-2018.

BACKGROUND: Schistosomiasis, also known as bilharzia, is a chronic parasitic blood fluke infection acquired through contact with contaminated surface water. The illness may be mild or can cause significant morbidity with potentially serious complications. Children and those living in rural areas with limited access to piped water and services for healthcare are the most commonly infected. To address the prevalence of the disease in parts of South Africa (SA) effective national control measures are planned, but have not yet been implemented. This study aimed to estimate the prevalence and trends of public sector laboratory-confirmed schistosomiasis cases in SA over an eight-year (2011-2018) period, to inform future control measures. METHODOLOGY & PRINCIPAL FINDINGS: This is a descriptive analysis of secondary data from the National Health Laboratory Service (NHLS). The study included all records of patients for whom microscopic examination detected Schistosoma species eggs in urine or stool specimens from January 2011 to December 2018. Crude estimates of the prevalence were calculated using national census mid-year provincial population estimates as denominators, and simple linear regression was used to analyse prevalence trends. A test rate ratio was developed to describe variations in testing volumes among different groups and to adjust prevalence estimates for testing variations. A total number of 135 627 schistosomiasis cases was analysed with the highest prevalence observed among males and individuals aged 5-19 years. We describe ongoing endemicity in the Eastern Cape Province, and indicate important differences in the testing between population groups. CONCLUSION: While there was no overall change in the prevalence of schistosomiasis during the analysis period, an average of 36 people per 100 000 was infected annually. As such, this represents an opportunity to control the disease and improve quality of life of affected people. Laboratory-based surveillance is a useful method for reporting occurrence and evaluating future intervention programs where resources to implement active surveillance are limited.

An outbreak of African swine fever in small-scale pigs, Gauteng, South Africa, July 2020.

OBJECTIVES: Since 2012, outbreaks of African swine fever (ASF) in domestic pigs have increased outside of South Africa's ASF control zone. This study describes the epidemiological investigation and findings of an ASF outbreak in a small-scale pig unit in Gauteng Province and makes recommendations to prevent future outbreaks. METHODS: PCR testing and molecular analysis were performed on pig tissue samples. Veterinary services conducted epidemiological investigations, forward and backward tracing, and surveillance. Farm management and biosecurity practices were assessed. Quarantine, culling, carcass disposal, and disinfection were implemented. RESULTS: ASF virus genotype I was detected. A concurrent ASF outbreak in neighbouring Mpumalanga Province was identified as a possible source. Inadequate biosecurity measures probably facilitated viral transmission. Potential mechanisms for the introduction of the ASF virus include swill feeding practices, free roaming of pigs, scavenging, illegal slaughter, and trade of pig products within the community. CONCLUSIONS: Molecular typing of the ASF virus linked the outbreak to an ongoing ASF outbreak in Mpumalanga Province. Pig enterprises with poor biosecurity practices may face greater risk of ASF introduction. Small-scale pig keepers should be targeted for ASF awareness and education campaigns. Innovative and cost-effective biosecurity solutions are needed in this resource-poor setting.

Genital Mycoplasma, Shigellosis, Zika, Pubic Lice, and Other Sexually Transmitted Infections: Neither Gone Nor Forgotten.

ABSTRACT: Most estimates of the combined burden and cost of sexually transmitted infections (STIs) in the United States have focused on 8 common STIs with established national surveillance strategies (chlamydia, gonorrhea, syphilis, trichomoniasis, genital herpes, human papillomavirus, and sexually transmitted human immunodeficiency virus and hepatitis B). However, over 30 STIs are primarily sexually transmitted or sexually transmissible. In this article, we review what is known about the burden of "other STIs" in the United States, including those where sexual transmission is not the primary transmission route of infection. Although the combined burden of these other STIs may be substantial, accurately estimating their burden due to sexual transmission is difficult due to diagnostic and surveillance challenges. Developing better estimates will require innovative strategies, such as leveraging existing surveillance systems, partnering with public health and academic researchers outside of the STI field, and developing methodology to estimate the frequency of sexual transmission, particularly for new and emerging STIs.

Prevalence of Self-reported Neurologic and Ocular Symptoms in Early Syphilis Cases.

BACKGROUND: Neurosyphilis, a complication of syphilis, can occur at any stage of infection. Measuring the prevalence of neurosyphilis is challenging, and there are limited data on the prevalence of neurologic or ocular symptoms among patients with syphilis. We sought to describe the prevalence of neurologic and/or ocular symptoms among early syphilis (ES) cases and the clinical management of symptomatic cases enrolled in the STD Surveillance Network (SSuN) Neuro/Ocular Syphilis Surveillance project. METHODS: Persons diagnosed with ES were selected for interviews based on current health department protocols in 5 participating SSuN jurisdictions from November 2016 through October 2017. All interviewed ES cases were screened for self-reported neurologic and/or ocular symptoms. Additional clinical information on diagnostic testing and treatment for cases concerning for neurosyphilis/ocular syphilis was obtained from providers. RESULTS: Among 9123 patients with ES who were interviewed, 151 (1.7%; 95% confidence interval [CI], 1.4%-1.9%) reported ≥ 1 neurologic or ocular symptom. Of the 53 (35%) who underwent lumbar puncture, 22 (42%) had documented abnormal cerebrospinal fluid, of which 21 (95%) were treated for neurosyphilis/ocular syphilis. Among the remaining 98 symptomatic patients with no documented lumbar puncture (65%), 12 (12%) were treated for and/or clinically diagnosed with neurosyphilis/ocular syphilis. CONCLUSIONS: We observed a low prevalence of self-reported neurologic and/or ocular symptoms in interviewed ES cases. Approximately one-third of ES cases who self-reported symptoms underwent further recommended diagnostic evaluation. Understanding barriers to appropriate clinical evaluation is important to ensuring appropriate management of patients with possible neurologic and/or ocular manifestations of syphilis.

Self-Reported Extragenital Chlamydia and Gonorrhea Testing in the Past 12 Months Among Men Who Have Sex with Men in the United States-American Men's Internet Survey, 2017.

BACKGROUND: Current guidelines recommend that sexually active men who have sex with men (MSM) be screened at least annually for bacterial sexually transmitted infections (STIs) at sites of sexual contact regardless of condom use. Extragenital (rectal and pharyngeal) STI are common in MSM and associated with an increased risk of human immunodeficiency virus. We describe the prevalence of MSM who reported any STI test and an extragenital STI test in the past 12 months (p12m) in the United States. METHODS: Data were obtained from the 2017 American Men's Internet Survey, an annual cross-sectional behavioral internet survey of MSM in the United States. We examined the prevalence of MSM who reported any STI test and an extragenital STI test in the p12m and compared the prevalence across demographic, clinical, and behavioral factors. RESULTS: Of 10,049 sexually active MSM who participated in American Men's Internet Survey 2017, 42% reported any STI test in the p12m and 16% reported an extragenital (rectal or pharyngeal) STI test in the p12m. Among those who reported getting an extragenital STI test in the p12m, 19% reported providing a throat swab only, 14% reported providing a rectal swab only, and 68% reported providing both a rectal and throat swab for STI testing. CONCLUSIONS: In a large sample of internet-using MSM in the United States, levels of STI screening were suboptimal, with fewer than half (42%) of MSM reporting any STI test and even fewer reporting an extragenital STI test in the p12m. Increased efforts are needed to ensure annual STI screening guidelines among MSM are implemented.

Geographic correlates of primary and secondary syphilis among men who have sex with men in the United States.

PURPOSE: Primary and secondary (P&S) syphilis in men who have sex with men (MSM) has been increasing; however, there is a lack of research on geographic factors associated with MSM P&S syphilis. METHODS: We used multiple data sources to examine associations between social and environmental factors and MSM P&S syphilis rates at the state- and county-level in 2014 and 2015, separately. General linear models were used for state-level analyses, and hurdle models were used for county-level models. Bivariate analyses (P < .25) were used to select variables for adjusted models. RESULTS: In 2014 and 2015 state models, a higher percentage of impoverished persons (2014 ß = 1.24, 95% confidence interval, 0.28-2.20; 2015 ß = 1.19; 95% confidence interval, 0.42-1.97) was significantly associated with higher MSM P&S syphilis rates. In the 2015 county model, policies related to sexual orientation (marriage, housing, hate crimes) were significant correlates of MSM P&S syphilis rates (P < .05). CONCLUSIONS: Our state-level findings that poverty is associated with MSM P&S syphilis are consistent with research at the individual level across different subpopulations and various sexually transmitted diseases. Our findings also suggest that more research is needed to further evaluate potential associations between policies and sexually transmitted diseases. Geographic-level interventions to address these determinants may help curtail the rising syphilis rates and their sequelae in MSM.

Syphilis Testing Among Sexually Active Men Who Have Sex With Men and Who Are Receiving Medical Care for Human Immunodeficiency Virus in the United States: Medical Monitoring Project, 2013-2014.

BACKGROUND: Guidelines recommend that sexually active men who have sex with men (MSM) including human immunodeficiency virus (HIV)-positive MSM be tested at least annually for syphilis, with testing every 3-6 months for MSM at elevated risk. We examined the proportion of HIV-positive MSM tested for syphilis in the past 3, 6, and 12 months by their HIV care provider during 2013-2014. METHODS: Using data from the Medical Monitoring Project, a population-based HIV surveillance system, we evaluated the proportion of MSM who had documentation of being tested for syphilis by their HIV care provider in the past 3, 6, and 12 months. RESULTS: During 2013-2014, 71% (95% confidence interval [CI]: 69%-73%) of sexually active HIV-positive MSM were tested for syphilis in the past year. This proportion was higher among MSM reporting condomless sex: (75%; 95% CI: 72%-78%), and among MSM reporting ≥ 2 sex partners (77%; 95% CI: 74%-79%), in the past 12 months. Among MSM reporting condomless sex, 49% (95% CI: 45%-53%) were tested in the past 6 months, and 26% (95% CI: 22%-30%) in the past 3 months. Among MSM reporting ≥ 2 sex partners, 49% (95% CI: 44%-54%) were tested in the past 6 months and 26% (95% CI: 22%-29%) in the past 3 months. CONCLUSIONS: Nearly one-third of sexually active HIV-positive MSM were not tested annually, and many at increased risk were not tested at recommended frequencies. Efforts to improve compliance with screening guidelines for high-risk HIV-positive MSM are warranted.

Reported Cases of Neurosyphilis Among Early Syphilis Cases-United States, 2009 to 2015.

The surveillance of neurosyphilis, an uncommon but severe consequence of syphilis, is complex; surveillance classification of neurosyphilis requires a lumbar puncture and cerebrospinal fluid analysis. We examined the prevalence of reported neurosyphilis among primary, secondary, and early latent syphilis cases reported in the United States from 2009 to 2015. Overall, the prevalence of reported neurosyphilis from 2009 to 2015 was low (0.84%); however, this is likely an underestimate of the true burden in the United States.