Asunto(s)
Infecciones por VIH , Hepatitis B , Transmisión Vertical de Enfermedad Infecciosa , Sífilis , Femenino , Humanos , Embarazo , Hepatitis B/transmisión , Hepatitis B/epidemiología , Hepatitis B/prevención & control , Infecciones por VIH/transmisión , Infecciones por VIH/epidemiología , India/epidemiología , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Complicaciones Infecciosas del Embarazo , Sífilis/transmisión , Sífilis/epidemiologíaRESUMEN
BACKGROUND: This study aimed to explore the facilitators and barriers to the elimination of human immunodeficiency virus (HIV), syphilis, and hepatitis B transmission based on the perspectives of mothers living with HIV, syphilis, and hepatitis B. METHODS: This study employed a descriptive, qualitative design. Semi-structured interviews were conducted with mothers living with HIV, syphilis, and/or hepatitis B virus. A total of 25 participants were included in the study. This study used a triangulation method conducted by members to enhance the validity and dependability of the findings. The study was conducted at referral hospitals and community health centers between September 2022 and February 2023. Data analysis utilized deductive content analysis and categorized themes based on a socio-ecological framework. RESULTS: The findings revealed facilitators and barriers across five levels of the socio-ecological framework and 21 subcategories. The findings included the following: (1) At the policy level, facilitators were mandatory testing programs, and barriers were separating testing services from antenatal care facilities. (2) At the community level, facilitators included the involvement of non-governmental organizations (NGOs) and cross-sector support. Barriers included challenges faced by non-residents and fear of stigma and discrimination. (3) At the healthcare system level, facilitators included tracking and follow-up by midwives, positive relationships with healthcare providers, and satisfaction with healthcare services. Barriers included prolonged waiting times, insufficient information from healthcare providers, and administrative limitations. (4) At the interpersonal level, facilitators included partner and family support, open communication, and absence of stigma. Barriers included the reluctance of sexual partners to undergo screening. (5) At the individual level, facilitators included the desire for a healthy baby, adequate knowledge, self-acceptance, and commitment to a healthy lifestyle; barriers included the lack of administrative discipline. CONCLUSION: Mothers living with HIV, syphilis, or hepatitis B require tailored healthcare approaches. Healthcare professionals must understand and meet the needs of mothers within a comprehensive care continuum. The findings of this study advocate for the development and implementation of integrated care models that are responsive to the specific challenges and preferences of affected mothers, aiming to improve health outcomes for both mothers and their children.
Asunto(s)
Infecciones por VIH , Hepatitis B , Transmisión Vertical de Enfermedad Infecciosa , Investigación Cualitativa , Sífilis , Humanos , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Femenino , Sífilis/transmisión , Sífilis/psicología , Adulto , Hepatitis B/transmisión , Infecciones por VIH/transmisión , Infecciones por VIH/psicología , Indonesia , Adulto Joven , Madres/psicología , Madres/estadística & datos numéricos , Embarazo , Entrevistas como AsuntoRESUMEN
Based on the distinctive spatial diffusion characteristics observed in syphilis transmission patterns, this paper introduces a novel reaction-diffusion model for syphilis disease dynamics, incorporating general incidence functions within a heterogeneous environment. We derive the basic reproduction number essential for threshold dynamics and investigate the uniform persistence of the model. We validate the model and estimate its parameters by employing the multi-objective Markov Chain Monte Carlo (MCMC) method, using real syphilis data from the years 2004 to 2018 in China. Furthermore, we explore the impact of spatial heterogeneity and intervention measures on syphilis transmission. Our findings reveal several key insights: (1) In addition to the original high-incidence areas of syphilis, Xinjiang, Guizhou, Hunan and Northeast China have also emerged as high-incidence regions for syphilis in China. (2) The latent syphilis cases represent the highest proportion of newly reported cases, highlighting the critical importance of considering their role in transmission dynamics to avoid underestimation of syphilis outbreaks. (3) Neglecting spatial heterogeneity results in an underestimation of disease prevalence and the number of syphilis-infected individuals, undermining effective disease prevention and control strategies. (4) The initial conditions have minimal impact on the long-term spatial distribution of syphilis-infected individuals in scenarios of varying diffusion rates. This study underscores the significance of spatial dynamics and intervention measures in assessing and managing syphilis transmission, which offers insights for public health policymakers.
Asunto(s)
Sífilis , Sífilis/transmisión , Sífilis/epidemiología , Humanos , China/epidemiología , Número Básico de Reproducción/estadística & datos numéricos , Incidencia , Cadenas de Markov , Modelos Epidemiológicos , Prevalencia , Método de MontecarloAsunto(s)
Infecciones por VIH , Hepatitis B , Transmisión Vertical de Enfermedad Infecciosa , Complicaciones Infecciosas del Embarazo , Sífilis , Humanos , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , India/epidemiología , Infecciones por VIH/transmisión , Infecciones por VIH/prevención & control , Infecciones por VIH/epidemiología , Femenino , Hepatitis B/transmisión , Hepatitis B/prevención & control , Hepatitis B/epidemiología , Sífilis/transmisión , Sífilis/epidemiología , Embarazo , Complicaciones Infecciosas del Embarazo/prevención & control , Complicaciones Infecciosas del Embarazo/epidemiología , Recién NacidoRESUMEN
This Viewpoint discusses Mississippi's public health challenges particularly as they relate to resurgent maternal and congenital syphilis.
Asunto(s)
Complicaciones Infecciosas del Embarazo , Sífilis Congénita , Sífilis , Humanos , Sífilis Congénita/prevención & control , Sífilis Congénita/epidemiología , Femenino , Mississippi/epidemiología , Embarazo , Sífilis/epidemiología , Sífilis/prevención & control , Sífilis/transmisión , Complicaciones Infecciosas del Embarazo/prevención & control , Complicaciones Infecciosas del Embarazo/epidemiología , Recién NacidoRESUMEN
BACKGROUND: The burden of parallel and overlapping infections of Sexually Transmitted Infections (STIs), particularly HIV, syphilis, hepatitis B (HBV), and hepatitis C virus (HCV) are disproportionately higher among pregnant women globally, leading to unwanted consequences. These infections pose significant public health challenges as they can be transmitted vertically to the offspring. This study aimed to determine the sero-epidemiological patterns and predictors of STIs (HIV, syphilis, HBV, and HCV) among pregnant women attending antenatal care clinics at ten health facilities in North-eastern Ethiopia. METHODS: An institution-based multi-center cross-sectional study was conducted from May to November 2022 among 422 pregnant women selected using simple random sampling technique. Semi-structured questionnaire was used to collect socio-demographic characteristics and predictor variables of STIs through face-to-face interviews. Venous blood was collected and it was tested for anti-HIV, HBsAg, anti-HCV, and anti-Treponemal antibodies using immunochromatographic test kits. Multinomial logistic regression analysis was used to identify associated factors of STIs. Variables with an adjusted odds ratio (AOR) and a p-value <0.05 were considered statistically significant. RESULTS: The overall prevalence of STIs was 23.9% (95% CI = 20.08-28.25). The prevalence of parallel infections of HIV, hepatitis B, hepatitis C, and syphilis were 6.4%, 9%, 1.7%, and 6.9%, respectively. The overlapping infections for HIV-HBV was 4% but HIV-HCV overlapping infection wasn't found. Increased age, tattooing, multiple sexual partners, exposure to unsafe sex, and RH status were independent factors of HBV. Likewise, increased age, rural residence, illiteracy, and tattooing were independently associated with HCV. Moreover, rural residence and a history of tattooing were independent predictors for the acquisition of HIV, whereas multiple sexual partners and RH status were found to be significant predictors of syphilis infection among pregnant women. CONCLUSION: The magnitude of overlapping and parallel STD infections is still continued to be a problem among pregnant women. Moreover, there were overlapping infections of HBV-HIV. Therefore, continuous screening of pregnant women for HIV, syphilis, hepatitis B, and C infections should be performed, and special attention should be given to pregnant women who have co-infections.
Asunto(s)
Hepatitis B , Hepatitis C , Transmisión Vertical de Enfermedad Infecciosa , Complicaciones Infecciosas del Embarazo , Enfermedades de Transmisión Sexual , Sífilis , Humanos , Femenino , Etiopía/epidemiología , Adulto , Embarazo , Estudios Transversales , Enfermedades de Transmisión Sexual/epidemiología , Enfermedades de Transmisión Sexual/transmisión , Adulto Joven , Complicaciones Infecciosas del Embarazo/epidemiología , Hepatitis B/epidemiología , Hepatitis B/transmisión , Hepatitis B/prevención & control , Sífilis/epidemiología , Sífilis/transmisión , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Hepatitis C/epidemiología , Hepatitis C/transmisión , Adolescente , Infecciones por VIH/epidemiología , Infecciones por VIH/transmisión , Prevalencia , Estudios SeroepidemiológicosRESUMEN
Gestational syphilis (GS) in adolescents is a challenge for Brazilian public health, with high incidence rates. Testing, diagnosis and treatment of sexual partners is essential to interrupt the chain of transmission, but since 2017 it is no longer a criterion for the proper treatment of pregnant women. We sought to analyze and synthesize the knowledge produced about the health care of sexual partners of adolescents with GS in Brazil. We carried out a systematic review in the BVS, SciELO and PubMed databases, selecting articles that addressed GS and/or congenital syphilis (CS) in adolescents aged 15 to 19 years and that included information about sexual partners. Forty-one articles were comprehensively analyzed using the WebQDA software and classified into two categories: a) Approach to sexual partners during prenatal care, and b) The role of sexual partners in the transmission cycle of GS and CS. The studies show that the partner's approach is deficient, with a lack of data on the sociodemographic profile and information on testing and treatment. In the context of Primary Health Care, there are no studies that address factors inherent to the context of vulnerability of sexual partners in relation to coping with syphilis.
A sífilis gestacional (SG) em adolescentes é um desafio para a saúde pública brasileira, com elevadas taxas de incidência. A testagem, diagnóstico e tratamento dos parceiros sexuais é indispensável para interromper a cadeia de transmissão, mas desde 2017 deixou de ser critério para o tratamento adequado da gestante. Buscamos analisar e sintetizar o conhecimento produzido sobre a atenção à saúde de parceiros sexuais de adolescentes com SG no Brasil. Realizamos uma revisão integrativa nas bases de dados BVS, SciELO e PubMed, selecionando artigos que abordavam SG e/ou sífilis congênita (SC) em adolescentes de 15 a 19 anos e que incluíam informações sobre os parceiros sexuais. Quarenta e um artigos foram analisados compreensivamente com auxílio do software WebQDA e classificados em duas categorias: (a) Abordagem dos parceiros sexuais no pré-natal, e (b) Papel dos parceiros sexuais no ciclo de transmissão da SG e da SC. Os estudos evidenciam que a abordagem do parceiro é deficitária, com ausência de dados sobre o perfil sociodemográfico e informações sobre testagem e tratamento. No âmbito da atenção primária à saúde não se encontram estudos que abordem fatores inerentes ao contexto de vulnerabilidade dos parceiros sexuais em relação ao enfrentamento da sífilis.
Asunto(s)
Complicaciones Infecciosas del Embarazo , Atención Prenatal , Parejas Sexuales , Sífilis Congénita , Sífilis , Humanos , Femenino , Adolescente , Embarazo , Brasil/epidemiología , Sífilis/diagnóstico , Sífilis/epidemiología , Sífilis/transmisión , Sífilis Congénita/prevención & control , Sífilis Congénita/epidemiología , Adulto Joven , Atención Prenatal/organización & administración , Atención Primaria de Salud/organización & administraciónRESUMEN
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.
Asunto(s)
Transmisión Vertical de Enfermedad Infecciosa , Complicaciones Infecciosas del Embarazo , Atención Prenatal , Sífilis Congénita , Humanos , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Sudáfrica/epidemiología , Femenino , Sífilis Congénita/prevención & control , Sífilis Congénita/epidemiología , Sífilis Congénita/transmisión , Embarazo , Recién Nacido , Complicaciones Infecciosas del Embarazo/epidemiología , Complicaciones Infecciosas del Embarazo/prevención & control , Sífilis/transmisión , Sífilis/epidemiología , Sífilis/diagnóstico , Sífilis/prevención & control , Adulto , Tamizaje Masivo , MasculinoRESUMEN
The origins of treponemal diseases have long remained unknown, especially considering the sudden onset of the first syphilis epidemic in the late 15th century in Europe and its hypothesized arrival from the Americas with Columbus' expeditions1,2. Recently, ancient DNA evidence has revealed various treponemal infections circulating in early modern Europe and colonial-era Mexico3-6. However, there has been to our knowledge no genomic evidence of treponematosis recovered from either the Americas or the Old World that can be reliably dated to the time before the first trans-Atlantic contacts. Here, we present treponemal genomes from nearly 2,000-year-old human remains from Brazil. We reconstruct four ancient genomes of a prehistoric treponemal pathogen, most closely related to the bejel-causing agent Treponema pallidum endemicum. Contradicting the modern day geographical niche of bejel in the arid regions of the world, the results call into question the previous palaeopathological characterization of treponeme subspecies and showcase their adaptive potential. A high-coverage genome is used to improve molecular clock date estimations, placing the divergence of modern T. pallidum subspecies firmly in pre-Columbian times. Overall, our study demonstrates the opportunities within archaeogenetics to uncover key events in pathogen evolution and emergence, paving the way to new hypotheses on the origin and spread of treponematoses.
Asunto(s)
Evolución Molecular , Genoma Bacteriano , Treponema pallidum , Infecciones por Treponema , Humanos , Brasil/epidemiología , Brasil/etnología , Europa (Continente)/epidemiología , Genoma Bacteriano/genética , Historia del Siglo XV , Historia Antigua , Sífilis/epidemiología , Sífilis/historia , Sífilis/microbiología , Sífilis/transmisión , Treponema pallidum/clasificación , Treponema pallidum/genética , Treponema pallidum/aislamiento & purificación , Infecciones por Treponema/epidemiología , Infecciones por Treponema/historia , Infecciones por Treponema/microbiología , Infecciones por Treponema/transmisiónRESUMEN
Background and Objectives: Syphilis is a sexually transmitted infection with low-cost and accessible treatment; however, it is considered a public health problem. Further studies are needed to improve knowledge about the factors that may contribute to the mother-to-child transmission of syphilis. Given its high detection rate in pregnant women and the possible adverse events of syphilis in Brazil, the objective was to evaluate the association of individual and clinical characteristics of syphilis with the incidence of congenital syphilis in pregnant women. Methods: This retrospective study was performed in a medium-size municipality in the State of São Paulo. Notification forms from the Notifiable Diseases Information System were used and the occurrence of congenital syphilis was the outcome of the study. Bivariate analyses and logistic regression were performed with variables that obtained p values <0.25. Results: Most pregnant women were 20-34 years old (62.2%) and had white skin (63.2%) and incomplete elementary schooling (35.4%). The occurrence of congenital syphilis was associated with the maternal syphilis diagnosis (p<0,001) and with not performing the treponemal test during the prenatal examination (p =0.014). There was a greater risk for the occurrence of congenital syphilis in cases with late diagnosis during pregnancy (OR=16.48; 95%CI 3.22-84.26) and tertiary/latent clinical classification (OR=7.62; 95%CI 1.40-41.54). Conclusion: Maternal diagnosis in the third trimester of pregnancy and tertiary/latent clinical classification were the main risk factors for the occurrence of congenital syphilis, reinforcing the importance of a quality prenatal examination performed timely.(AU)
Justificativa e Objetivos: A sífilis é uma Infecção Sexualmente Transmissível, com tratamento de baixo custo e acessível; porém, ela é considerada um problema de saúde pública. Para aprimorar o conhecimento sobre os fatores que podem contribuir para transmissão vertical da sífilis, mais estudos são necessários. Diante da elevada taxa de detecção em gestantes e dos possíveis eventos adversos da sífilis no Brasil, o objetivo foi avaliar a associação das características individuais e clínicas de sífilis com a incidência de sífilis congênita em gestantes. Métodos: Este estudo retrospectivo foi realizado em um município de médio porte no Estado de São Paulo. Foram usadas as fichas de notificação do Sistema de Informação de Agravos de Notificação e o desfecho do estudo foi a ocorrência de sífilis congênita. Foram realizadas análises bivariadas e regressão logística com as variáveis que obtiveram valores de p<0,25. Resultados: As maioria das gestantes tinha 20-34 anos (62,2%), era branca (63,2%), com escolaridade fundamental incompleta (35,4%). A ocorrência de sífilis congênita esteve associada ao diagnóstico de sífilis materno no terceiro trimestre de gestação (p<0,001) e com a não realização de teste treponêmico durante o pré-natal (p=0,014). Houve maior risco para a ocorrência de sífilis congênita os casos com diagnóstico tardio na gestação (OR=16,48; IC95% 3,22-84,26) e classificação clínica terciária/latente (OR=7,62; IC95% 1,40-41,54). Conclusão: Os principais fatores de risco para ocorrência de sífilis congênita foram o diagnóstico materno no terceiro trimestre de gestação e classificação clínica terciária/latente, reforçando a importância de um exame pré-natal de qualidade e em tempo oportuno.(AU)
Justificación y objetivos: La sífilis es una Infección de Transmisión Sexual con tratamiento accesible y de bajo coste, sin embargo, es considerada un problema de salud pública. Se necesitan más estudios para mejorar el conocimiento sobre los factores que pueden contribuir a la transmisión maternoinfantil de la sífilis. Dada su alta tasa de detección en gestantes y los posibles eventos adversos de la sífilis en Brasil, el objetivo fue evaluar la asociación de las características individuales y clínicas de la sífilis con la incidencia de sífilis congénita en gestantes. Métodos: Estudio retrospectivo realizado en una ciudad de mediano porte del Estado de São Paulo. Fueran utilizados formularios de notificación obligatoria del Sistema de Información de Enfermedades de Declaración Obligatoria y el desenlance fue la ocurrencia de sífilis congénita. Se realizaron análisis bivariados y regresión logística con las variables que obtuvieron p-value<0,25. Resultados: La mayoría de las mujeres embarazadas tenían entre 20 y 34 años (62,2%), eran blancas (63,2%), con instrucción primaria incompleta (35,4%). La aparición de sífilis congénita se asoció con el diagnóstico de sífilis materna en el tercer trimestre del embarazo (p<0,001) y con la no realización de prueba treponémica durante el prenatal (p=0,014). Hubo un mayor riesgo de sífilis congénita en los casos diagnosticados tardíamente en el embarazo (OR=16,48; IC95% 3,22-84,26) y clasificación clínica terciaria/latente (OR=7,62; IC95% 1,40-41,54). Conclusiones: Los principales factores de riesgo de aparición de sífilis congénita fueron el diagnóstico materno en el tercer trimestre de gestación y la clasificación clínica terciaria/tardía, lo que refuerza la importancia de una atención prenatal de calidad y oportuna.(AU)
Asunto(s)
Humanos , Sífilis Congénita/epidemiología , Sífilis/transmisión , Factores de Riesgo , Transmisión Vertical de Enfermedad Infecciosa , Enfermedades de Transmisión Sexual , Salud PúblicaRESUMEN
Introduction: Syphilis is an infectious systemic disease caused by the bacterium Treponema pallidum. The Amaury de Medeiros Integrated University Health Center in Recife is a reference maternity hospital for high-risk pregnancies and the management of the most common Sexually Transmitted Infections during prenatal care, including Gestational Syphilis and Congenital Syphilis. Objective: To determine the epidemiological profile of the population exposed to these conditions, the rate of Gestational Syphilis detection, the incidence of Congenital Syphilis, and the associated unfavorable outcomes in Amaury de Medeiros Integrated University Health Center between January 2019 and December 2021. Methods: This retrospective cohort study included pregnant women and neonates diagnosed with syphilis at Amaury de Medeiros Integrated University Health Center. Data were collected from the Notification/Investigation Forms for Gestational Syphilis and Congenital Syphilis, between January 2019 and December 2021. Results: At Amaury de Medeiros Integrated University Health Center, 463 cases of Gestational Syphilis and 296 of Congenital Syphilis were reported. During the three-year study, 4444, 4360, and 4265 live births were recorded, confirming the Gestational Syphilis detection rates 33.30, 36.92, and 36.10 per 1000 live births, with the incidence of Congenital Syphilis being 26.1, 21.33, and 20.39 per 1000 live births. Pregnant women in their third trimester who were brown, had incomplete primary education, and lived in an urban area were the main sociodemographic variables. In total, 217 (73.3%) patients were diagnosed with Gestational Syphilis during or after delivery, indicating a low prenatal coverage (70.6%). In terms of the progression of Congenital Syphilis, unfavorable outcomes was found in 40 (13.5%) patients, including 16 (40%) abortions, 10 (25%) stillbirths, nine (22.5%) deaths from Congenital Syphilis, and 5 (12.5%) deaths from other causes. Conclusion: Gestational Syphilis detection rates and Congenital Syphilis incidence remain alarming, with abortions and stillbirths being the most common unfavorable outcomes. To change the dramatic situation of Congenital Syphilis in Brazil, the associated factors point to a poor quality of prenatal care and an urgent need to change public policies for pregnant women and newborns, in conjunction with socioeconomic assistance
Asunto(s)
Humanos , Femenino , Embarazo , Recién Nacido , Complicaciones Infecciosas del Embarazo/epidemiología , Sífilis Congénita/epidemiología , Brasil/epidemiología , Sífilis/diagnóstico , Sífilis/transmisión , Sífilis/epidemiología , Incidencia , Estudios Retrospectivos , Factores de RiesgoRESUMEN
BACKGROUND: Gay, bisexual and other men who have sex with men (gbMSM) who attend STI clinics represent an easily accessible population for promoting HIV prevention interventions. We examined characteristics of gbMSM STI clinic attendees to identify those who could most benefit from pre-exposure prophylaxis (PrEP). SETTING: GbMSM STI clinic attendees in British Columbia (BC), Canada. METHODS: A clinical electronic charting system of STI clinics in BC was used to identify gbMSM from 2004 to 2017. Incident HIV cases were defined as testers who had at least one HIV-negative test and a subsequent HIV-positive test. Seroconversion rates were calculated by risk factor variables and by year. Cox proportional hazards regression was used to identify independent predictors of HIV seroconversion. RESULTS: There were 9,038 gbMSM included, of whom 257 HIV seroconverted over the study period and 8,781 remained negative HIV testers, contributing 650.8 and 29,591.0 person-years to the analysis, respectively. The overall rate of seroconversion was 0.85 per 100 person-years (95% CI: 0.75-0.96). Incidence rates were higher among patients reporting >5 partners in the previous six months, inconsistent condom use, or having a partner living with HIV and who had a previous or concurrent diagnosis of rectal gonorrhea or rectal chlamydia. gbMSM presenting with two STIs such as rectal gonorrhea and syphilis (3.59/100 person-years [95%CI: 2.33-5.22]) or rectal chlamydia and syphilis (3.01/100 person-years [95%CI: 2.00-4.29]) had the highest incidence rates. CONCLUSION: gbMSM with preceding or concurrent rectal STI diagnoses or syphilis had higher rates of HIV seroconversion. The data support the inclusion of specific STI diagnoses as an indication for PrEP.
Asunto(s)
Seropositividad para VIH , VIH-1 , Homosexualidad Masculina , Minorías Sexuales y de Género , Adulto , Gonorrea/diagnóstico , Gonorrea/epidemiología , Gonorrea/transmisión , Seropositividad para VIH/diagnóstico , Seropositividad para VIH/epidemiología , Seropositividad para VIH/transmisión , Humanos , Masculino , Estudios Retrospectivos , Sífilis/diagnóstico , Sífilis/epidemiología , Sífilis/transmisiónRESUMEN
Over the last decade, syphilis diagnoses among men-who-have-sex-with-men (MSM) have strongly increased in Europe. Understanding the drivers of the ongoing epidemic may aid to curb transmissions. In order to identify the drivers of syphilis transmission in MSM in Switzerland between 2006 and 2017 as well as the effect of potential interventions, we set up an epidemiological model stratified by syphilis stage, HIV-diagnosis, and behavioral factors to account for syphilis infectiousness and risk for transmission. In the main model, we used 'reported non-steady partners' (nsP) as the main proxy for sexual risk. We parameterized the model using data from the Swiss HIV Cohort Study, Swiss Voluntary Counselling and Testing center, cross-sectional surveys among the Swiss MSM population, and published syphilis notifications from the Federal Office of Public Health. The main model reproduced the increase in syphilis diagnoses from 168 cases in 2006 to 418 cases in 2017. It estimated that between 2006 and 2017, MSM with HIV diagnosis had 45.9 times the median syphilis incidence of MSM without HIV diagnosis. Defining risk as condomless anal intercourse with nsP decreased model accuracy (sum of squared weighted residuals, 378.8 vs. 148.3). Counterfactual scenarios suggested that increasing screening of MSM without HIV diagnosis and with nsP from once every two years to twice per year may reduce syphilis incidence (at most 12.8% reduction by 2017). Whereas, increasing screening among MSM with HIV diagnosis and with nsP from once per year to twice per year may substantially reduce syphilis incidence over time (at least 63.5% reduction by 2017). The model suggests that reporting nsP regardless of condom use is suitable for risk stratification when modelling syphilis transmission. More frequent screening of MSM with HIV diagnosis, particularly those with nsP may aid to curb syphilis transmission.
Asunto(s)
Homosexualidad Masculina/estadística & datos numéricos , Tamizaje Masivo/estadística & datos numéricos , Sífilis , Adulto , Biología Computacional , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Suiza/epidemiología , Sífilis/diagnóstico , Sífilis/epidemiología , Sífilis/prevención & control , Sífilis/transmisión , Sexo Inseguro/estadística & datos numéricosRESUMEN
BACKGROUND: Children may acquire syphilis by nonsexual contact as a consequence of close and repetitive contact with mucosal or skin lesions of people with active syphilis. METHODS: Prospective cohort study of pediatric patients with acquired syphilis by nonsexual contact. Demographics, clinical findings, posttreatment serology development and general laboratory data were collected. Sexual transmission was ruled out after a careful medical and psychosocial evaluation of the patient and his/her family. RESULTS: Twenty-four patients were included in the study. Mean age at diagnosis was 4.2 years old. All of them came from overcrowded households with poor hygiene conditions. The most frequent reason for consultations was secondary syphilis skin lesions (79.2%). The psychosocial evaluation of children and their families did not reveal signs of sexual abuse in any of the cases. Seventy-eight families and their cohabitants were evaluated, 23 (29.5%) resulted positive for rapid plasma reagin and treponemal test of hemagglutination; 60.9% of the cases were asymptomatic. The symptomatic relatives showed lesions of secondary syphilis. A sustained fall on nontreponemal antibodies titer (rapid plasma reagin) was observed after treatment, becoming negative in 6/24 (25%) cases within 12 months posttreatment. DISCUSSION: Following evaluation, it was considered that sexual abuse was unlikely. However, if examination and psychosocial evaluation do not support it, other ways of transmission must be considered. Overcrowded and poor household conditions boost the risks for nonsexual treponema transmission. An infected member of the family or a caretaker are a particular risk to an infant due to common practices such as using saliva to moisten the rubber nipples of the milk bottles or trying the food temperature using the lips before feeding the infants.
Asunto(s)
Anticuerpos Antibacterianos/sangre , Familia , Piel/microbiología , Sífilis/etiología , Sífilis/transmisión , Niño , Preescolar , Aglomeración , Composición Familiar , Femenino , Humanos , Higiene , Masculino , Pobreza , Estudios Prospectivos , Piel/patología , Sífilis/sangre , Sífilis/diagnóstico , Serodiagnóstico de la Sífilis , Treponema pallidum/inmunologíaRESUMEN
Abstract Objectives: to calculate the prevalence and rate per 1,000 live births of sexually transmitted infections (STI) in pregnant women at a public maternity hospital in Salvador. Methods: this descriptive, cross-sectional study retrospectively collected data from compulsory notifications and medical records of pregnant women with STI seen at a maternity hospital in northeastern Brazil between 2014 and 2017 (n = 520). Prevalence and rate per 1,000 live births were estimated for hepatitis B, hepatitis C, HIV, and syphilis. Associations between STI and other clinical and sociodemographic variables were investigated. Results: most pregnant women were born and resided in Salvador, presented a mean age of 26.4 years, self-reported mixed-race and had unplanned pregnancies. Prevalence and rates per 1,000 live births were, respectively: 0.26% and 3.39 for hepatitis B, 0.06% and 0.79 for hepatitis C, 0.47% and 6.23 for HIV, and 2.46% and 32.2 for syphilis. Conclusion: higher prevalence and rates of infection per 1,000 live births were seen at the maternity hospital in northeastern Brazil compared to official data provided by the Brazilian government, notably with regard to HIV and syphilis. The appropriate epidemiological notification of STI, especially in pregnant women, enables the elaboration of effective preventive strategies incorporating specific sociodemographic and clinical characteristics.
Resumo Objetivos: calcular a prevalência e as taxas por 1000 nascidos vivos de infecções sexualmente transmissíveis (IST) em gestantes de uma maternidade pública de Salvador. Métodos: estudo transversal, descritivo, com dados coletados retrospectivamente a partir das fichas de notificação dos agravos e dos prontuários de todas as gestantes com IST atendidas na maternidade, entre os anos de 2014 e 2017 (n=520). Foram calculadas as prevalências e as taxas por 1000 nascidos vivos de hepatite B, hepatite C, HIV e sífilis para a população de gestantes da maternidade. Associações entre as IST e demais variáveis clínicas e sociodemográficas também foram investigadas. Resultados: a maioria das gestantes era natural e residente de Salvador, pardas, com idade média de 26,4 anos e que não planejaram a gravidez. As prevalências e as taxas por 1000 nascidos vivos foram respectivamente: 0,26% e 3,39 para hepatite B, 0,06% e 0,79 para hepatite C, 0,47% e 6,23 para HIV e 2,46% e 32,2 para sífilis. Conclusão: a maternidade apresenta prevalências e taxas por 1000 nascidos vivos superiores aos dados oficiais do governo brasileiro, especialmente para HIV e sífilis. A correta notificação epidemiológica desses agravos, especialmente em gestantes, permite o desenvolvimento de estratégias preventivas mais eficientes e com enfoque nas características sociodemográficas e clínicas das pacientes.
Asunto(s)
Humanos , Femenino , Embarazo , Recién Nacido , Sífilis/transmisión , Sífilis/epidemiología , Infecciones por VIH/transmisión , Infecciones por VIH/epidemiología , Hepatitis C/transmisión , Hepatitis C/epidemiología , Mujeres Embarazadas , Hepatitis B/transmisión , Hepatitis B/epidemiología , Factores Socioeconómicos , Brasil/epidemiología , Enfermedades de Transmisión Sexual/epidemiología , Estudios Transversales , Nacimiento Vivo , Sistemas de Información en SaludAsunto(s)
Infecciones por Chlamydia/epidemiología , Gonorrea/epidemiología , Infecciones por VIH/epidemiología , Profilaxis Pre-Exposición/estadística & datos numéricos , Sífilis/epidemiología , Adulto , Infecciones por Chlamydia/prevención & control , Infecciones por Chlamydia/psicología , Infecciones por Chlamydia/transmisión , Gonorrea/prevención & control , Gonorrea/psicología , Gonorrea/transmisión , Infecciones por VIH/prevención & control , Infecciones por VIH/psicología , Infecciones por VIH/transmisión , Homosexualidad Masculina/psicología , Humanos , Londres/epidemiología , Masculino , Recto/microbiología , Recto/virología , Estudios Retrospectivos , Factores de Riesgo , Sífilis/prevención & control , Sífilis/psicología , Sífilis/transmisiónRESUMEN
OBJECTIVE: There have been significant successes in the fight against HIV/AIDS due to the access to rapid HIV testing, interventions to reduce the mother-to-child transmission (MTCT) risk, potent and effective antiviral medications, and other biomedical prevention strategies. The purpose of this work is to demonstrate that Puerto Rico eliminated Mother-to-Child Transmission of HIV (MTCT) following the 2017 World Health Organization (WHO) criteria for validating the elimination of MTCT and Syphilis. METHODS: Existing epidemiological data from Puerto Rico was used to document the elimination of MTCT and Syphilis. Data to calculate the indicators was obtained from the various divisions of the Puerto Rico Department of Health, including vital statistics, surveillance data, and programmatic outcomes. RESULTS: Puerto Rico eliminated MTCT and syphilis, according to the WHO indicators, earlier than other countries. We can trace the outcomes to 1994 using the incidence rate of perinatally-acquired HIV of <50/100,000; to 2007 using HIV perinatal transmission rates for non-breastfeeding countries (<2%), to 2008 using 90% of women receiving ART at delivery, and to 2005 using the incidence rate of congenital syphilis of <50/100,000. CONCLUSION: Not only have we eliminated the MTCT of HIV and syphilis, but the efforts have been sustained since 2000. The elimination of transmission of infectious diseases requires the intersection of scientific feasibility, coordinated interventions, and political will, successfully attained in Puerto Rico.
Asunto(s)
Erradicación de la Enfermedad , Infecciones por VIH/prevención & control , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Complicaciones Infecciosas del Embarazo/prevención & control , Sífilis/prevención & control , Adulto , Femenino , Infecciones por VIH/transmisión , Política de Salud , Humanos , Embarazo , Puerto Rico/epidemiología , Sífilis/transmisiónRESUMEN
Japan has had a substantial increase in syphilis cases since 2013. However, research on the genomic features of the Treponema pallidum subspecies pallidum (TPA) strains from these cases has been limited. Here, we elucidated the genetic variations and relationships between TPA strains in Japan (detected between 2014 and 2018) and other countries by whole-genome sequencing and phylogenetic analyses, including syphilis epidemiological surveillance data and information on patient sexual orientation. Seventeen of the 20 strains in Japan were SS14- and the remaining 3 were Nichols-lineage. Sixteen of the 17 SS14-lineage strains were classified into previously reported Sub-lineage 1B. Sub-lineage 1B strains in Japan have formed distinct sub-clusters of strains from heterosexuals and strains from men who have sex with men. These strains were closely related to reported TPA strains in China, forming an East-Asian cluster. However, those strains in these countries evolved independently after diverging from their most recent common ancestor and expanded their genetic diversity during the time of syphilis outbreak in each country. The genetic difference between the TPA strains in these countries was characterized by single-nucleotide-polymorphism analyses of their penicillin binding protein genes. Taken together, our results elucidated the detailed phylogenetic features and transmission networks of syphilis.
Asunto(s)
Genoma Bacteriano , Proteínas de Unión a las Penicilinas/genética , Filogenia , Polimorfismo de Nucleótido Simple , Sífilis/epidemiología , Treponema pallidum/genética , Adulto , Técnicas de Tipificación Bacteriana , Monitoreo Epidemiológico , Femenino , Expresión Génica , Variación Genética , Heterosexualidad , Homosexualidad Masculina , Humanos , Incidencia , Japón/epidemiología , Masculino , Persona de Mediana Edad , Sífilis/microbiología , Sífilis/transmisión , Treponema pallidum/clasificación , Secuenciación Completa del GenomaRESUMEN
BACKGROUND: The increasing incidence of syphilis worldwide has called attention to the risk of transmission by transfusion. AIMS: To determine the prevalence of active syphilis in blood donors and characterise the serological profile of syphilis-positive donors. METHODS: Samples positive for Treponema pallidum using the chemiluminescent microparticle immunoassay (CMIA) during blood donor screening from 2017 to 2018 were tested by the Venereal Disease Research Laboratory (VDRL) non-treponemal test and for anti-T. pallidum IgM by ELISA (Immunoassay Enzyme test for detection of IgM antibodies). The INNO-LIA Syphilis test (Line Immuno Assay solid test for confirmation antibodies to Treponema pallidum) was performed as a confirmatory test on samples that were positive on ELISA-IgM but negative on VDRL. ELISA-IgM (+) samples were also tested for T. pallidum DNA in sera by real-time polymerase chain reaction (PCR). RESULTS: Of 248 542 samples screened, 1679 (0.67%) were positive for syphilis by CMIA. Further analysis was performed on 1144 (68.1%) of these samples. Of those tested, 16% were ELISA IgM(+)/VDRL(+), 16.5% were ELISA IgM(-)/VDRL(+), 4.1% were ELISA IgM(+)/VDRL(-), and 63.4% were ELISA IgM (-)/VDRL(-). The INNO-LIA Syphilis test results were 33 (3%) positive, 2 (0.2%) undetermined and 12 (1%) negative. Of the 230 EIA-IgM(+) samples (20.1%), 5 (2.2%) were PCR positive. The prevalence of active syphilis in 2017 and 2018 was 0.1% and 0.07%, respectively, and overall prevalence of serologic markers for syphilis was highest among male, unmarried, 25-34-year-olds with a high school education and who were first-time donors. CONCLUSION: There is a risk of transfusion-transmitted syphilis in blood banks that exclusively use the VDRL test for donor screening, as is currently the situation in some Brazilian blood centres, as well as in other blood centres around the world.
Asunto(s)
Anticuerpos Antibacterianos/sangre , Donantes de Sangre , Seguridad de la Sangre , Selección de Donante/métodos , Serodiagnóstico de la Sífilis , Sífilis/diagnóstico , Treponema pallidum/inmunología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores/sangre , Brasil/epidemiología , Estudios Transversales , Ensayo de Inmunoadsorción Enzimática , Femenino , Humanos , Inmunoensayo , Masculino , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa , Prevalencia , Reproducibilidad de los Resultados , Estudios Retrospectivos , Estudios Seroepidemiológicos , Sífilis/sangre , Sífilis/epidemiología , Sífilis/transmisión , Serodiagnóstico de la Sífilis/métodos , Adulto JovenRESUMEN
BACKGROUND: The epidemiology of congenital infections is ever changing, with a recent resurgence in syphilis infection rates seen in the UK. Identification of congenital infection is often delayed; early recognition and management of congenital infections is important. Testing modalities and investigations are often limited, leading to missed diagnostic opportunities. METHODS: The SCORTCH (syphilis, cytomegalovirus (CMV), 'other', rubella, toxoplasmosis, chickenpox, herpes simplex virus (HSV) and blood-borne viruses) acronym increases the awareness of clinicians to the increased risk of congenital syphilis, while considering other infectious aetiologies including: zika, malaria, chagas disease, parvovirus, enterovirus, HIV, hepatitis B and C, and human T-lymphotropic virus 1, in addition to the classic congenital infections recognised in the 'TORCH screen' (toxoplasmosis, 'other', rubella, CMV, HSV). The SCORTCH diagnostic approach describes common signs present in infants with congenital infection, details serological testing for mother and infant and important direct diagnostics of the infant. Direct diagnostic investigations include: radiology, ophthalmology, audiology, microbiological and PCR testing for both the infant and placental tissue, the latter also warrants histopathology. CONCLUSION: The traditional 'TORCH screen' focuses on serology-specific investigations, often omits important direct diagnostic testing of the infant, and fails to consider emerging and re-emerging congenital infections. In recognition of syphilis as a re-emerging pathogen and the overlapping clinical presentations of various infectious aetiologies, we advocate for a broader outlook using the SCORTCH diagnostic approach.