Effectiveness of a Meningococcal Group B Vaccine (4CMenB) in Children.

BACKGROUND: In September 2015, the four-component, protein-based meningococcal serogroup B vaccine (4CMenB; Bexsero) became available for private purchase in Spain. METHODS: We conducted a nationwide matched case-control study to assess the effectiveness of 4CMenB in preventing invasive meningococcal disease in children. The study included all laboratory-confirmed cases of invasive meningococcal disease in children younger than 60 months of age between October 5, 2015, and October 6, 2019, in Spain. Each case patient was matched with four controls according to date of birth and province. 4CMenB vaccination status of the case patients and controls was compared with the use of multivariate conditional logistic regression. RESULTS: We compared 306 case patients (243 [79.4%] with serogroup B disease) with 1224 controls. A total of 35 case patients (11.4%) and 298 controls (24.3%) had received at least one dose of 4CMenB. The effectiveness of complete vaccination with 4CMenB (defined as receipt of at least 2 doses, administered in accordance with the manufacturer's recommendations) was 76% (95% confidence interval [CI], 57 to 87) against invasive meningococcal disease caused by any serogroup, and partial vaccination was 54% (95% CI, 18 to 74) effective. Complete vaccination resulted in an effectiveness of 71% (95% CI, 45 to 85) against meningococcal serogroup B disease. Vaccine effectiveness with at least one dose of 4CMenB was 64% (95% CI, 41 to 78) against serogroup B disease and 82% (95% CI, 21 to 96) against non-serogroup B disease. With the use of the genetic Meningococcal Antigen Typing System, serogroup B strains that were expected to be covered by 4CMenB were detected in 44 case patients, none of whom had been vaccinated. CONCLUSIONS: Complete vaccination with 4CMenB was found to be effective in preventing invasive disease by serogroup B and non-serogroup B meningococci in children younger than 5 years of age.

Cobertura y adherencia a la vacunación frente a la gripe en menores de 15 años con condiciones de riesgo en la Comunidad de Madrid / Vaccination against influenza: Coverage and adherence in children under 15 years with high-risk medical conditions in the Community of Madrid

Introducción: La vacunación antigripal está especialmente indicada en población infantil con riesgo de complicaciones o enfermedad grave. El objetivo de este estudio es describir el porcentaje de vacunación frente a la gripe en menores de 15 años con condiciones de riesgo en la Comunidad de Madrid, así como analizar los factores asociados a la adherencia vacunal a lo largo de tres campañas de vacunación. Material y métodos: Estudio observacional, transversal, de base poblacional de niños/as de seis meses a 14 años y con condiciones de riesgo que tuvieran indicación de vacunación antigripal al inicio de la campaña 2018-2019. Se emplearon registros poblacionales electrónicos. Se describió el porcentaje de vacunados durante tres campañas consecutivas. Se analizó mediante análisis bivariado y multivariado la asociación de la adherencia vacunal con variables demográficas, socioeconómicas y condiciones de riesgo. Resultados: La cobertura vacunal fue del 15,6% en la campaña 2018-2019. La adherencia a la vacunación fue del 65,9%. Se asociaron a una mayor adherencia edad ≥ 3 años, fundamentalmente de 6-10 años (ORa=1,63; IC 95% [1,43-1,85]) y presentar más de una condición de riesgo, especialmente ≥ 3 (ORa=1,80; IC 95% [1,00-3,26]). La enfermedad más asociada fue diabetes mellitus (ORa=2,15; IC 95% [1,74-2,65]). Las personas extranjeras presentaron menor adherencia (ORa=0,43; IC 95% [0,36-0,51]). No se encontraron diferencias en la adherencia según sexo ni nivel socioeconómico. Conclusiones: La adherencia y cobertura vacunal se encuentran en niveles subóptimos. La adherencia a la vacunación antigripal se asocia a características demográficas y clínicas. Es necesario establecer estrategias para incrementar la vacunación en población infantil, con mayor implicación de profesionales y formación de progenitores. (AU)

Introduction: Vaccination against influenza is indicated in children at risk of complications or severe disease. The objective of this study was to describe the percentage of children aged less than 15 years with risk conditions vaccinated against influenza in the Community of Madrid, and to analyze the factors associated with adherence to vaccination throughout 3 vaccination campaigns. Materials and methods: Population-based cross-sectional observational study of children aged 6 months to 14 years with conditions that indicated influenza vaccination at the beginning of the 2018–2019 campaign. Electronic population registers were used. We described the percentage of children vaccinated in 3 consecutive campaigns, and assessed the association of adherence to vaccination with demographic and socioeconomic variables and risk conditions using bivariate and multivariate analysis. Results: The vaccination coverage was 15.6% in the 2018–2019 campaign. The adherence to vaccination was 65.9%. The variables associated with greater adherence were age greater than 2 years, especially in the 6–10 years group (aOR=1.63; 95% CI: 1.43–1.85) and presenting more than one risk condition, especially 3 or more diseases (aOR=1.80; 95% CI: 1.00–3.26). Diabetes mellitus was the disease associated most strongly with adherence (aOR=2.15; 95% CI: 1.74–2.65). Adherence was lower in the immigrant population (aOR=0.43; 95% CI: 0.36–0.51). We found no association between vaccination adherence and sex or socioeconomic status. Conclusions: Vaccination coverage and adherence were suboptimal. Adherence to vaccination against influenza is associated with demographic and clinical conditions. Strategies need to be established to increase vaccination in children, with greater involvement of professionals and education of parents. (AU)

Vaccination against influenza: Coverage and adherence in children under 15 years with high-risk medical conditions in the Community of Madrid.

INTRODUCTION: Vaccination against influenza is indicated in children at risk of complications or severe disease. The objective of this study was to describe the percentage of children aged less than 15 years with risk conditions vaccinated against influenza in the Community of Madrid, and to analyze the factors associated with adherence to vaccination throughout 3 vaccination campaigns. MATERIALS AND METHODS: Population-based cross-sectional observational study of children aged 6 months to 14 years with conditions that indicated influenza vaccination at the beginning of the 2018-2019 campaign. Electronic population registers were used. We described the percentage of children vaccinated in 3 consecutive campaigns, and assessed the association of adherence to vaccination with demographic and socioeconomic variables and risk conditions using bivariate and multivariate analysis. RESULTS: The vaccination coverage was 15.6% in the 2018-2019 campaign. The adherence to vaccination was 65.9%. The variables associated with greater adherence were age greater than 2 years, especially in the 6-10 years group (aOR = 1.63; 95% CI, 1.43-1.85) and presenting more than one risk condition, especially 3 or more diseases (aOR = 1.80; 95% CI, 1.00-3.26). Diabetes mellitus was the disease associated most strongly with adherence (aOR = 2.15; 95% CI, 1.74-2.65). Adherence was lower in the immigrant population (aOR = 0.43; 95% CI, 0.36-0.51). We found no association between vaccination adherence and sex or socioeconomic status. CONCLUSIONS: Vaccination coverage and adherence were suboptimal. Adherence to vaccination against influenza is associated with demographic and clinical conditions. Strategies need to be established to increase vaccination in children, with greater involvement of professionals and education of parents.

[Evaluation of COVID-19 emergency and state of alarm impact on Neonatal Screening Programs in Madrid: endocrine and metabolic disorders program and hearing program review.] / Evaluación rápida del impacto de la crisis sanitaria generada por la epidemia de COVID-19 en los programas de cribado neonatal en la Comunidad de Madrid: programa de cribado neonatal de enfermedades endocrino-metabólicas y programa de detección precoz de hipoacusia en recién nacidas/os.

OBJECTIVE: Under the declaration of the state of alarm (SA) in efforts to control COVID-19, normal development of health programs was threatened. The aim of the study was the evaluation of COVID 19 emergency and SA approval impact on neonatal Endocrine and Metabolic Disorders Program (EMDP) and Neonatal Hearing Program (HP) in Madrid. METHODS: Qualitative and quantitative descriptive study was conducted. Semistructured interview was designed and developed to picture newborn screening activities taking place from January 1st to 31st of April 2020. To describe the undergo rates of newborn screening, neonatal screening information system (RECRINE) and martenity and prenatal care units were studied. Differences were analyzed using Chi2 test (p value = 0.05). RESULTS: More than 70% interviews were reported. Early hospital discharges, between 24 and 48h, were made in more than 80% hospitals. Screening programs were adapted in more than 75% health care centers. EMDP 19 diseases, RECRINE and Clinical Reference Units (RCU) referral were conducted. No significant incidences were observed in diagnostic confirmation and treatment in the RCU. RCU were adapted because of the reorganization of health care. 88.5% of the hospitals showed higher than 95% coverage rates on Hearing screening and SEM. No differences were observed compared to the pre-epidemic period. CONCLUSIONS: Our study demonstrates PCN professionals resilience. The importance of designing periodic evaluations to understand and alleviate the COVID-19 impact is remarkable. We need to assure 2020 newborns attention health care quality.

OBJETIVO: El estado de alarma decretado como medida de control de la epidemia COVID-19 supuso una amenaza en el correcto desarrollo de los programas de salud de la Comunidad de Madrid. El objetivo de este trabajo fue evaluar el impacto de la epidemia por COVID-19 y el estado de alarma decretado en los Programas de Cribado Neonatal (PCN) de Enfermedades Endocrino-Metabólicas (EEM) e hipoacusias en la Comunidad de Madrid. METODOS: Se realizó un estudio descriptivo cuali-cuantitativo del 1 enero al 31 abril de 2020. Para describir las actividades desarrolladas en las etapas de los PCN se diseñaron cuestionarios semiestructurados. Para conocer las coberturas de cribado se analizaron el REgistro de CRIbado Neonatal (RECRINE) e información de los Servicios de Maternidad. Se analizaron diferencias utilizando el test de Chi2 (p valor=0,05). RESULTADOS: Las tasas de respuesta a los cuestionarios fueron mayores del 70%. Más del 80% de los hospitales dieron altas precoces entre las 24 y 48 horas de vida del recién nacido. Se diseñaron circuitos alternativos para realizar los PCN en más del 75% de los centros. Se aseguró el cribado de las diecinueve enfermedades del PCN de EEM, el RECRINE y la derivación a las Unidades Clínicas de Referencia (UCR). No se observaron incidencias importantes en confirmación diagnóstica y tratamiento en las UCR que se adaptaron a la reorganización de la asistencia sanitaria. Se observaron coberturas de cribado auditivo y de EEM superiores al 95% en el 88,5% de los hospitales. No se observaron diferencias frente al periodo preepidémico. CONCLUSIONES: Nuestro estudio demuestra la resiliencia de los profesionales que participan en el desarrollo de los PCN. Es remarcable la importancia de continuar diseñando evaluaciones periódicas para conocer y subsanar el impacto de la epidemia de COVID-19 según los estándares de calidad de atención a la población nacida en 2020 y sus madres.

[Evaluation of a meningococcal ACWY catch-up vaccination program for adolescents on Community of Madrid.] / Evaluación de la vacunación de rescate frente a meningococo ACWY en adolescentes de la Comunidad de Madrid.

OBJECTIVE: In 2019 the Interterritorial Board of the Spanish National Health System approved the modification of the vaccination strategy against meningococcus. The objective of this study was to evaluate the meningococcal ACWY catch-up vaccination program in adolescents born in 2001 and 2002 in the Community of Madrid. METHODS: Cross-sectional population-based study. Vaccine coverage was estimated and factors associated with vaccination were assessed using logistic regression models. RESULTS: Vaccination coverage was 57.1% for those born in 2001 and 51.9% for those born in 2002. The probability of vaccination was higher in women (ORa=1.18), adolescents with chronic conditions (ORa=1.38), residents in rural areas (ORa=1.76) and in areas with lower socioeconomic level. Being born in 2002 (ORa=0.78) and abroad (ORa=0.35) were associated with a lower probability of vaccination. CONCLUSIONS: Coverage is high compared to similar campaigns in other settings, although there is significant room for improvement, so our study can contribute to the design of strategies to optimize results.

OBJETIVO: En 2019, el Consejo Interterritorial del Sistema Nacional de Salud aprobó la modificación de la estrategia de vacunación frente a meningococo. El objetivo de este estudio fue evaluar la vacunación de rescate frente a meningococo A, C, W, Y en adolescentes nacidos en 2001 y 2002 en la Comunidad de Madrid. METODOS: Se realizó un estudio transversal de base poblacional. Se determinó la cobertura vacunal y los factores asociados a la vacunación, utilizando modelos de regresión logística. RESULTADOS: La cobertura vacunal fue del 57,1% para nacidos en 2001 y del 51,9% para nacidos en 2002. La probabilidad de vacunación fue mayor en mujeres (ORa=1,18), adolescentes con alguna enfermedad crónica (ORa=1,38), residentes en el ámbito rural (ORa=1,76) y en zonas con menor nivel socioeconómico. Haber nacido en 2002 (ORa=0,78) y en el extranjero (ORa=0,35) se asociaron a una menor probabilidad de vacunación. CONCLUSIONES: La cobertura es elevada en comparación con campañas similares en otros entornos, aunque existe un importante margen de mejora, por lo que nuestro estudio puede contribuir al diseño de estrategias para optimizar los resultados.

Evaluación de la vacunación de rescate frente a meningococo ACWY en adolescentes de la Comunidad de Madrid / Evaluation of a meningococcal ACWY catch-up vaccination program for adolescents on Community of Madrid

OBJETIVO: En 2019, el Consejo Interterritorial del Sistema Nacional de Salud aprobó la modificación de la estrategia de vacunación frente a meningococo. El objetivo de este estudio fue evaluar la vacunación de rescate frente a meningococo A, C, W, Y en adolescentes nacidos en 2001 y 2002 en la Comunidad de Madrid. MÉTODOS: Se realizó un estudio transversal de base poblacional. Se determinó la cobertura vacunal y los factores asociados a la vacunación, utilizando modelos de regresión logística. RESULTADOS: La cobertura vacunal fue del 57,1% para nacidos en 2001 y del 51,9% para nacidos en 2002. La probabilidad de vacunación fue mayor en mujeres (ORa=1,18), adolescentes con alguna enfermedad crónica (ORa=1,38), residentes en el ámbito rural (ORa=1,76) y en zonas con menor nivel socioeconómico. Haber nacido en 2002 (ORa=0,78) y en el extranjero (ORa=0,35) se asociaron a una menor probabilidad de vacunación. CONCLUSIONES: La cobertura es elevada en comparación con campañas similares en otros entornos, aunque existe un importante margen de mejora, por lo que nuestro estudio puede contribuir al diseño de estrategias para optimizar los resultados

OBJECTIVE: In 2019 the Interterritorial Board of the Spanish National Health System approved the modification of the vaccination strategy against meningococcus. The objective of this study was to evaluate the meningococcal ACWY catch-up vaccination program in adolescents born in 2001 and 2002 in the Community of Madrid. METHODS: Cross-sectional population-based study. Vaccine coverage was estimated and factors associated with vaccination were assessed using logistic regression models. RESULTS: Vaccination coverage was 57.1% for those born in 2001 and 51.9% for those born in 2002. The probability of vaccination was higher in women (ORa=1.18), adolescents with chronic conditions (ORa=1.38), residents in rural areas (ORa=1.76) and in areas with lower socioeconomic level. Being born in 2002 (ORa=0.78) and abroad (ORa=0.35) were associated with a lower probability of vaccination. CONCLUSIONS: Coverage is high compared to similar campaigns in other settings, although there is significant room for improvement, so our study can contribute to the design of strategies to optimize results

Evaluación rápida del impacto de la crisis sanitaria generada por la epidemia de COVID-19 en los programas de cribado neonatal en la Comunidad de Madrid: programa de cribado neonatal de enfermedades endocrino-metabólicas y programa de detección precoz de hipoacusia en recién nacidas/os / Evaluation of COVID-19 emergency and state of alarm impact on Neonatal Screening Programs in Madrid: endocrine and metabolic disorders program and hearing program review

OBJETIVO: El estado de alarma decretado como medida de control de la epidemia COVID-19 supuso una amenaza en el correcto desarrollo de los programas de salud de la Comunidad de Madrid. El objetivo de este trabajo fue evaluar el impacto de la epidemia por COVID-19 y el estado de alarma decretado en los Programas de Cribado Neonatal (PCN) de Enfermedades Endocrino-Metabólicas (EEM) e hipoacusias en la Comunidad de Madrid. MÉTODOS: Se realizó un estudio descriptivo cuali-cuantitativo del 1 enero al 31 abril de 2020. Para describir las actividades desarrolladas en las etapas de los PCN se diseñaron cuestionarios semiestructurados. Para conocer las coberturas de cribado se analizaron el REgistro de CRIbado Neonatal (RECRINE) e información de los Servicios de Maternidad. Se analizaron diferencias utilizando el test de Chi2 (p valor=0,05). RESULTADOS: Las tasas de respuesta a los cuestionarios fueron mayores del 70%. Más del 80% de los hospitales dieron altas precoces entre las 24 y 48 horas de vida del recién nacido. Se diseñaron circuitos alternativos para realizar los PCN en más del 75% de los centros. Se aseguró el cribado de las diecinueve enfermedades del PCN de EEM, el RECRINE y la derivación a las Unidades Clínicas de Referencia (UCR). No se observaron incidencias importantes en confirmación diagnóstica y tratamiento en las UCR que se adaptaron a la reorganización de la asistencia sanitaria. Se observaron coberturas de cribado auditivo y de EEM superiores al 95% en el 88,5% de los hospitales. No se observaron diferencias frente al periodo preepidémico. CONCLUSIONES: Nuestro estudio demuestra la resiliencia de los profesionales que participan en el desarrollo de los PCN. Es remarcable la importancia de continuar diseñando evaluaciones periódicas para conocer y subsanar el impacto de la epidemia de COVID-19 según los estándares de calidad de atención a la población nacida en 2020 y sus madres

OBJECTIVE: Under the declaration of the state of alarm (SA) in efforts to control COVID-19, normal development of health programs was threatened. The aim of the study was the evaluation of COVID 19 emergency and SA approval impact on neonatal Endocrine and Metabolic Disorders Program (EMDP) and Neonatal Hearing Program (HP) in Madrid. METHODS: Qualitative and quantitative descriptive study was conducted. Semistructured interview was designed and developed to picture newborn screening activities taking place from January 1st to 31st of April 2020. To describe the undergo rates of newborn screening, neonatal screening information system (RECRINE) and martenity and prenatal care units were studied. Differences were analyzed using Chi2 test (p value = 0.05). RESULTS: More than 70% interviews were reported. Early hospital discharges, between 24 and 48h, were made in more than 80% hospitals. Screening programs were adapted in more than 75% health care centers. EMDP 19 diseases, RECRINE and Clinical Reference Units (RCU) referral were conducted. No significant incidences were observed in diagnostic confirmation and treatment in the RCU. RCU were adapted because of the reorganization of health care. 88.5% of the hospitals showed higher than 95% coverage rates on Hearing screening and SEM. No differences were observed compared to the pre-epidemic period. CONCLUSIONS: Our study demonstrates PCN professionals resilience. The importance of designing periodic evaluations to understand and alleviate the COVID-19 impact is remarkable. We need to assure 2020 newborns attention health care quality

[Spatial analysis of syphilis and gonorrhea infections in a Public Health Service in Madrid]. / Estudio espacial de la sífilis infecciosa y la infección gonocócica en un servicio de salud pública de área de Madrid.

OBJECTIVE: Sexually transmitted diseases are a significant public health problem. Within the Madrid Autonomous Region, the districts with the highest syphilis and gonorrhea incidences are part of the same Public Health Service (Servicio de Salud Pública del Área 7, SSPA 7). The objective of this study was to identify, by spatial analysis, clusters of syphilis and gonorrhea infections in this SSPA in Madrid. METHODS: All confirmed syphilis and gonorrhea cases registered in SSPA 7 in Madrid were selected. Moran's I was calculated in order to identify the existence of spatial autocorrelation and a cluster analysis was performed. Clusters and cumulative incidences (CI) per health zone were mapped. RESULTS: The district with most cases was Centro (CI: 67.5 and 160.7 per 100.000 inhabitants for syphilis and gonorrhea, respectively) with the highest CI (120.0 and 322.6 per 100.000 inhabitants) in the Justicia health zone.91.6% of all syphilis cases and 89.6% of gonorrhea cases were among men who have sex with men (MSM). Moran's I was 0.54 and 0.55 (p=0.001) for syphilis and gonorrhea, respectively. For syphilis, a cluster was identified including the six health zones of the Centro district, with a relative risk (RR)of 6.66 (p=0.001). For gonorrhea, a cluster was found including the Centro district, three health zones of the Chamberí district and one of Latina (RR 5.05; p=0.001). CONCLUSIONS: Centro was the district with most cases of syphilis and gonorrhea and the most affected population were MSM. For both infections, clusters were found with an important overlap. By identifying the most vulnerable health zones and populations, these results can help to design public health measures for preventing sexually transmitted diseases.

OBJETIVO: Las infecciones de transmisión sexual son un importante problema de salud pública. Dentro de la Comunidad de Madrid, los distritos con mayor incidencia de sífilis infecciosa e infección gonocócica pertenecen al Servicio de Salud Pública del Área 7 (SSPA 7). El objetivo de este estudio fue identificar conglomerados de casos de sífilis infecciosa y de infección gonocócica dentro de este SSPA. METODOS: Se seleccionaron todos los casos confirmados de sífilis infecciosa y de infección gonocócica del año 2015 registrados en el SSPA 7 de Madrid. Se determinó el índice I de Morán para las dos enfermedades para identificar la existencia de autocorrelación espacial y se realizó un análisis de conglomerados. Los conglomerados e incidencias acumuladas (IA) por zona básica de salud (ZBS) fueron visualizados en mapas. RESULTADOS: El distrito con más casos fue Centro (IA: 67,5 y 160,7 por 100.000 habitantes para la sífilis infecciosa y la infección gonocócica, respectivamente), con IA más altas (120,0 y 322,6 por 100.000 habitantes) en la ZBS de Justicia. El 91,6% de los casos de sífilis infecciosa y el 89,6% de las infecciones gonocócicas correspondieron a hombres que tienen sexo con hombres (HSH). El índice I de Moran fue de 0,54 y 0,55 (p=0,001) para la sífilis infecciosa y la infección gonocócica respectivamente. Para la sífilis infecciosa se identificó un conglomerado que comprende las seis ZBS que forman el distrito Centro, con un riesgo relativo (RR) de 6,66 (p=0,001). Para la infección gonocócica, se identificó un conglomerado que englobaba el distrito Centro, tres ZBS de Chamberí y una del distrito Latina (RR 5,05; p=0,001). CONCLUSIONES: Centro fue el distrito con más casos de sífilis infecciosa y de infección gonocócica y el colectivo más afectado fue el de HSH. Para las dos enfermedades se identificaron conglomerados con un gran solapamiento. Al identificar las zonas básicas de salud y colectivos más vulnerables, estos resultados pueden ayudar a diseñar intervenciones de salud pública para la prevención de las infecciones de transmisión sexual.

Risk mapping of West Nile virus circulation in Spain, 2015.

West Nile fever is an emergent disease in Europe. The objective of this study was to conduct a predictive risk mapping of West Nile Virus (WNV) circulation in Spain based on historical data of WNV circulation. Areas of Spain with evidence of WNV circulation were mapped based on data from notifications to the surveillance systems and a literature review. A logistic regression-based spatial model was used to assess the probability of WNV circulation. Data were analyzed at municipality level. Mean temperatures of the period from June to October, presence of wetlands and presence of Special Protection Areas for birds were considered as potential predictors. Two predictors of WNV circulation were identified: higher temperature [adjusted odds ratio (AOR) 2.07, 95% CI 1.82-2.35, p<0.01] and presence of wetlands (3.37, 95% CI 1.89-5.99, p<0.01). Model validations indicated good predictions: area under the ROC curve was 0.895 (95% CI 0.870-0.919) for internal validation and 0.895 (95% CI 0.840-0.951) for external validation. This model could support improvements of WNV risk- based surveillance in Spain. The importance of a comprehensive surveillance for WNF, including human, animal and potential vectors is highlighted, which could additionally result in model refinements.

Estudio espacial de la sífilis infecciosa y la infección gonocócica en un servicio de salud pública de Área de Madrid / Spatial analysis of syphilis and gonorrhea infections in a Public Health Service in Madrid

Fundamentos: Las infecciones de transmisión sexual son un importante problema de salud pública. Dentro de la Comunidad de Madrid, los distritos con mayor incidencia de sífilis infecciosa e infección gonocócica pertenecen al Servicio de Salud Pública del Área 7 (SSPA 7). El objetivo de este estudio fue identificar conglomerados de casos de sífilis infecciosa y de infección gonocócica dentro de este SSPA. Métodos: Se seleccionaron todos los casos confirmados de sífilis infecciosa y de infección gonocócica del año 2015 registrados en el SSPA 7 de Madrid. Se determinó el índice I de Morán para las dos enfermedades para identificar la existencia de autocorrelación espacial y se realizó un análisis de conglomerados. Los conglomerados e incidencias acumuladas (IA) por zona básica de salud (ZBS) fueron visualizados en mapas. Resultados: El distrito con más casos fue Centro (IA: 67,5 y 160,7 por 100.000 habitantes para la sífilis infecciosa y la infección gonocócica, respectivamente), con IA más altas (120,0 y 322,6 por 100.000 habitantes) en la ZBS de Justicia. El 91,6% de los casos de sífilis infecciosa y el 89,6% de las infecciones gonocócicas correspondieron a hombres que tienen sexo con hombres (HSH). El índice I de Moran fue de 0,54 y 0,55 (p<0,001) para la sífilis infecciosa y la infección gonocócica respectivamente. Para la sífilis infecciosa se identificó un conglomerado que comprende las seis ZBS que forman el distrito Centro, con un riesgo relativo (RR) de 6,66 (p=0,001). Para la infección gonocócica, se identificó un conglomerado que englobaba el distrito Centro, tres ZBS de Chamberí y una del distrito Latina (RR 5,05; p=0,001). Conclusión: Centro fue el distrito con más casos de sífilis infecciosa y de infección gonocócica y el colectivo más afectado fue el de HSH. Para las dos enfermedades se identificaron conglomerados con un gran solapamiento. Al identificar las zonas básicas de salud y colectivos más vulnerables, estos resultados pueden ayudar a diseñar intervenciones de salud pública para la prevención de las infecciones de transmisión sexual (AU)

Background: Sexually transmitted diseases are a significant public health problem. Within the Madrid Autonomous Region, the districts with the highest syphilis and gonorrhea incidences are part of the same Public Health Service (Servicio de Salud Pública del Área 7, SSPA 7). The objective of this study was to identify, by spatial analysis, clusters of syphilis and gonorrhea infections in this SSPA in Madrid. Methods: All confirmed syphilis and gonorrhea cases registered in SSPA 7 in Madrid were selected. Moran’s I was calculated in order to identify the existence of spatial autocorrelation and a cluster analysis was performed. Clusters and cumulative incidences (CI) per health zone were mapped. Results: The district with most cases was Centro (CI: 67.5 and 160.7 per 100.000 inhabitants for syphilis and gonorrhea, respectively) with the highest CI (120.0 and 322.6 per 100.000 inhabitants) in the Justicia health zone. 91.6% of all syphilis cases and 89.6% of gonorrhea cases were among men who have sex with men (MSM). Moran’s I was 0.54 and 0.55 (p<0.001) for syphilis and gonorrhea, respectively. For syphilis, a cluster was identified including the six health zones of the Centro district, with a relative risk (RR)of 6.66 (p=0.001). For gonorrhea, a cluster was found including the Centro district, three health zones of the Chamberí district and one of Latina (RR 5.05; p=0.001). Conclusion: Centro was the district with most cases of syphilis and gonorrhea and the most affected population were MSM. For both infections, clusters were found with an important overlap. By identifying the most vulnerable health zones and populations, these results can help to design public health measures for preventing sexually transmitted diseases (AU)

Factores sociales asociados con la utilización de los servicios de atención prenatal en Ecuador / Social factors associated with use of prenatal care in Ecuador

RESUMEN Objetivos La atención prenatal es uno de los pilares de la salud pública y permite el acceso a intervenciones tales como la prevención de la transmisión materno-infantil del VIH y de la sífilis congénita. Este artículo tiene como objetivo describir los factores sociales asociados con la utilización de los servicios de atención prenatal en Ecuador. Métodos Entre 2011 y 2012, se realizó un análisis de la información procedente de las historias clínicas y de la entrevista a las participantes, que integraron una muestra probabilística a nivel nacional de 5 998 mujeres atendidas por parto o aborto en 15 servicios sanitarios en Ecuador con el objetivo de estimar la prevalencia de VIH, sífilis, enfermedad de Chagas y la cobertura de atención prenatal. Resultados El estudio mostró que 94,1% de las mujeres había acudido a algún control prenatal, pero la asistencia al menos a cuatro controles fue 73,1%. Se encontró que el menor nivel educativo, el mayor número de embarazos, la ocupación en el sector agrícola o ganadero y la pertenencia a los grupos étnicos indígena, afroecuatoriano u otros minoritarios fueron factores asociados con la falta de uso (ningún control prenatal) o al uso inadecuado de la atención prenatal (menos de cuatro controles o primer control después de las 20 semanas de gestación) en Ecuador. Conclusiones Estos resultados apuntan a la persistencia de desigualdades marcadas en el acceso y en la utilización de servicios de atención prenatal atribuibles a factores socioeconómicos y a la necesidad de fortalecer las estrategias para su abordaje para alcanzar la meta de la cobertura universal de atención prenatal.(AU)

ABSTRACT Objectives Prenatal care is a pillar of public health, enabling access to interventions including prevention of mother-to-child transmission of HIV and congenital syphilis. This paper describes social factors related to use of prenatal care in Ecuador. Methods In 2011 and 2012, participant clinical history and interview information was analyzed from a national probability sample of 5 998 women presenting for delivery or miscarriage services in 15 healthcare facilities in Ecuador, to estimate prevalence of HIV, syphilis, and Chagas disease, and prenatal care coverage. Results The study found that 94.1% of women had attended at least one prenatal visit, but that attendance at no less than four visits was 73.1%. Furthermore, lower educational level, greater number of pregnancies, occupation in the agriculture or livestock sector, and membership in ethnic indigenous, Afro-Ecuadorian, or other minority groups were factors associated with lack of use (no prenatal visits) or insufficient use of prenatal care (fewer than four visits or first visit at >20 weeks gestation) in Ecuador. Conclusions These results point to persistence of marked inequalities in access to and use of prenatal health services attributable to socioeconomic factors and to the need to strengthen strategies to address them, to reach the goal of universal prenatal care coverage.(AU)

Factores sociales asociados con la utilización de los servicios de atención prenatal en Ecuador / Social factors associated with use of prenatal care in Ecuador

Objetivos. La atención prenatal es uno de los pilares de la salud pública y permite el acceso a intervenciones tales como la prevención de la transmisión materno-infantil del VIH y de la sífilis congénita. Este artículo tiene como objetivo describir los factores sociales asociados con la utilización de los servicios de atención prenatal en Ecuador. Métodos. Entre 2011 y 2012, se realizó un análisis de la información procedente de las historias clínicas y de la entrevista a las participantes, que integraron una muestra probabilística a nivel nacional de 5 998 mujeres atendidas por parto o aborto en 15 servicios sanitarios en Ecuador con el objetivo de estimar la prevalencia de VIH, sífilis, enfermedad de Chagas y la cobertura de atención prenatal. Resultados. El estudio mostró que 94,1% de las mujeres había acudido a algún control prenatal, pero la asistencia al menos a cuatro controles fue 73,1%. Se encontró que el menor nivel educativo, el mayor número de embarazos, la ocupación en el sector agrícola o ganadero y la pertenencia a los grupos étnicos indígena, afroecuatoriano u otros minoritarios fueron factores asociados con la falta de uso (ningún control prenatal) o al uso inadecuado de la atención prenatal (menos de cuatro controles o primer control después de las 20 semanas de gestación) en Ecuador. Conclusiones. Estos resultados apuntan a la persistencia de desigualdades marcadas en el acceso y en la utilización de servicios de atención prenatal atribuibles a factores socioeconómicos y a la necesidad de fortalecer las estrategias para su abordaje para alcanzar la meta de la cobertura universal de atención prenatal.

Objectives. Prenatal care is a pillar of public health, enabling access to interventions including prevention of mother-to-child transmission of HIV and congenital syphilis. This paper describes social factors related to use of prenatal care in Ecuador. Methods. In 2011 and 2012, participant clinical history and interview information was analyzed from a national probability sample of 5 998 women presenting for delivery or miscarriage services in 15 healthcare facilities in Ecuador, to estimate prevalence of HIV, syphilis, and Chagas disease, and prenatal care coverage. Results. The study found that 94.1% of women had attended at least one prenatal visit, but that attendance at no less than four visits was 73.1%. Furthermore, lower educational level, greater number of pregnancies, occupation in the agriculture or livestock sector, and membership in ethnic indigenous, Afro-Ecuadorian, or other minority groups were factors associated with lack of use (no prenatal visits) or insufficient use of prenatal care (fewer than four visits or first visit at >20 weeks gestation) in Ecuador. Conclusions. These results point to persistence of marked inequalities in access to and use of prenatal health services attributable to socioeconomic factors and to the need to strengthen strategies to address them, to reach the goal of universal prenatal care coverage.

[Social factors associated with use of prenatal care in Ecuador]. / Factores sociales asociados con la utilización de los servicios de atención prenatal en Ecuador.

OBJECTIVES: Prenatal care is a pillar of public health, enabling access to interventions including prevention of mother-to-child transmission of HIV and congenital syphilis. This paper describes social factors related to use of prenatal care in Ecuador. METHODS: In 2011 and 2012, participant clinical history and interview information was analyzed from a national probability sample of 5 998 women presenting for delivery or miscarriage services in 15 healthcare facilities in Ecuador, to estimate prevalence of HIV, syphilis, and Chagas disease, and prenatal care coverage. RESULTS: The study found that 94.1% of women had attended at least one prenatal visit, but that attendance at no less than four visits was 73.1%. Furthermore, lower educational level, greater number of pregnancies, occupation in the agriculture or livestock sector, and membership in ethnic indigenous, Afro-Ecuadorian, or other minority groups were factors associated with lack of use (no prenatal visits) or insufficient use of prenatal care (fewer than four visits or first visit at >20 weeks gestation) in Ecuador. CONCLUSIONS: These results point to persistence of marked inequalities in access to and use of prenatal health services attributable to socioeconomic factors and to the need to strengthen strategies to address them, to reach the goal of universal prenatal care coverage.

A national survey to determine prevalence of Trypanosoma cruzi infection among pregnant women in Ecuador.

A nationwide survey was conducted to obtain an estimate of Chagas disease prevalence among pregnant women in Ecuador. As part of a national probability sample, 5,420 women seeking care for delivery or miscarriage at 15 healthcare facilities were recruited into the study. A small minority of participants reported knowing about Chagas disease or recognized the vector. A national seroprevalence of 0.1% (95% confidence interval [95% CI] = 0.0-0.2%) was found; cases were concentrated in the coastal region (seroprevalence = 0.2%; 95% CI = 0.0-0.4%). No cases of transmission to neonates were identified in the sample. Seropositive participants were referred to the National Chagas Program for evaluation and treatment. Additional studies are necessary to determine if areas of higher prevalence exist in well-known endemic provinces and guide the development of a national strategy for elimination of mother-to-child transmission of Chagas disease in Ecuador.

HIV, STI and Behavioral Risk Among Men Who have Sex with Men in a Setting of Elevated HIV Prevalence Along Ecuador's Pacific Coast.

We assessed HIV and STI prevalence, risk behaviors and factors associated with HIV infection in men who have sex with men (MSM) in Guayaquil, Ecuador. Respondent-driven sampling was used to recruit 400 MSM in 2011-2012. Participants completed a computer-assisted self-interview and provided blood samples. Statistical analysis accounted for differential probability of selection and for recruitment patterns. HIV prevalence was 11.3 %, HSV-2 30.2 %, active syphilis 6.9 % and hepatitis B 1.2 %. In the previous 12 months, 84 % of MSM reported casual male sex partners and 25 % sex work. Only 48 % of MSM consistently used condoms with male partners and 54 % had ever been tested for HIV. Of 17 % of MSM reporting a female partner, consistent condom use was 6 %. HIV infection was associated with age 25 or older, active syphilis and homosexual self-identification. Findings suggest continuing HIV risk and a need to strengthen prevention and testing among MSM.

[Possible introduction and autochthonous transmission of dengue virus in Spain]. / Posibilidad de introducción y circulación del virus del Dengue en España.

Dengue has become a major public health problem worldwide. Ae. albopictus, vector responsible for transmission, was first detected in Catalonia in 2004. Since then, it has established along Mediterranean coast. The aim of this paper is to describe the risk of importation and possible autochthonous transmission of dengue virus in Spain, qualitatively reviewing factors that could influence the emergence of dengue in our country, and the implications for public health. No autochthonous transmission has occurred in our country to date, but infected travelers coming from endemic countries are arriving to Spain constantly. The transmission of this disease could occur on the Mediterranean coast. Transmission would be more likely in the warmer months due to cultural habits and higher vector densities. While most of the population would be susceptible, given the characteristics of the disease, the impact on health's population would be low. The main public health strategy to reduce the risk of importation and possible dengue transmission should focus on primary prevention, to prevent interaction of the virus, vector and human. These three components must be addressed in a comprehensive and multisectoral plan of action, intensifying some activities in the areas of greatest risk. Coordination of public health from all sectors involved is essential for the proper functioning of this integrated response plan for vector-borne diseases.

Posibilidad de introducción y circulación del virus del Dengue en España / Possible introduction and autochthonous transmission of Dengue virus in Spain

El dengue se ha convertido en un importante problema de salud pública mundial. Ae. albopictus, vector competente para su transmisión, se detectó por primera vez en Cataluña en 2004. Desde entonces se ha establecido por la costa Mediterránea. El objetivo del artículo es describir el riesgo de importación y posible transmisión del dengue en España, revisando cualitativamente los factores que podrían influir en su emergencia en nuestro país, así como las implicaciones que tendría a nivel de salud pública. Aunque el virus no circula actualmente en España, constantemente llegan personas infectadas procedentes de países endémicos. La transmisión de esta enfermedad podría ocurrir en la costa mediterránea. Sería más probable en los meses más cálidos por los hábitos socioculturales y las mayor presencia del vector.Aunque la mayoría de la población es susceptible, el impacto en la salud de la población sería bajo dadas las características de la enfermedad. La estrategia fundamental de salud pública para reducir el riesgo de importación y posible transmisión del dengue debe enfocarse a la prevención primaria para evitar la interacción del virus, el vector y los seres humanos. Estos tres componentes deben abordarse dentro de un plan de acción integral y multisectorial, intensificando algunas actividades en las zonas de mayor riesgo. La coordinación desde salud pública de todos los sectores implicados es imprescindible para el correcto funcionamiento de este plan integral de respuesta ante enfermedades transmitidas por vectores (AU)

Dengue has become a major public health problem worldwide. Ae. albopictus, vector responsible for transmission, was first detected in Catalonia in 2004. Since then, it has established along Mediterranean coast. The aim of this paper is to describe the risk of importation and possible autochthonous transmission of dengue virus in Spain, qualitatively reviewing factors that could influence the emergence of dengue in our country, and the implications for public health. No autochthonous transmission has occurred in our country to date, but infected travelers coming from endemic countries are arriving to Spain constantly. The transmission of this disease could occur on the Mediterranean coast. Transmission would be more likely in the warmer months due to cultural habits and higher vector densities. While most of the population would be susceptible, given the characteristics of the disease, the impact on health’s population would be low. The main public health strategy to reduce the risk of importation and possible dengue transmission should focus on primary prevention, to prevent interaction of the virus, vector and human. These three components must be addressed in a comprehensive and multisectoral plan of action, intensifying some activities in the areas of greatest risk. Coordination of public health from all sectors involved is essential for the proper functioning of this integrated response plan for vector-borne diseases (AU)

Dispersion of Aedes albopictus in the Spanish Mediterranean Area.

Emergence and re-emergence of arboviral disease in new areas of southern Europe is becoming a public health problem. Since Aedes albopictus was first detected in 2004 in Catalonia, it has spread along the Spanish Mediterranean coast. Results of an entomological surveillance carried out by the Spanish Ministry of Health to monitor the expansion of Ae. albopictus along the Spanish Mediterranean coast between 2009 and 2012 are presented. Besides the new locations in Valencia and Murcia regional communities, it was identified in five municipalities in the Balearic Islands in 2012. A comprehensive plan aiming the control of invasive vector-borne diseases including entomological surveillance should be considered.

A continuing HIV epidemic and differential patterns of HIV-STI risk among MSM in Quito, Ecuador: an urgent need to scale up HIV testing and prevention.

This study characterized the HIV epidemic among men who have sex with men (MSM) in Quito, Ecuador and contrasted risk patterns with other STI's. 416 MSM ages 15 years and older were recruited using respondent-driven sampling in 2010-2011. Biological testing and a self-interview survey assessed HIV and STI infections and risk behaviors. Analysis incorporated recruiter-level variables and clustering adjustments to control for recruitment patterns. We identify high levels of HIV (11 %), HSV-2 (14 %) and active syphilis (5.5 %) infections, low levels of lifetime HIV testing (57 %), limited knowledge of HIV and STI's (<48 %) and limited consistent condom use independent of partner type (<40 %). Sex work was associated with all infections while associations with residential location, how casual partners are met and other variables, varied. Scale-up of behavioral prevention and HIV testing is urgently needed. Interventions should target male sex workers and exploit differential patterns of HIV-STI risk to stay ahead of the epidemic.

HIV and syphilis infection in pregnant women in Ecuador: prevalence and characteristics of antenatal care.

OBJECTIVES: This study aimed to obtain nationally representative estimates of HIV and syphilis prevalence and coverage of preventive antenatal services in pregnant women in Ecuador, in order to develop a national strategy for the elimination of mother-to-child transmission of HIV and syphilis. METHODS: A national probability sample of 5988 women presenting for delivery or miscarriage services was selected from 15 healthcare facilities during 2011-2012, using a two-stage cluster sample technique. Biological specimens were collected and an interview and review of medical records were performed. Agreement between these last two sources was measured. Estimates were adjusted for the sampling design. RESULTS: Estimated national HIV prevalence (0.60%) was higher than confirmed syphilis infection prevalence (0.25%). In the coastal region, HIV prevalence (1.13%) exceeded the threshold that defines a generalised epidemic and syphilis prevalence reached 0.37%. An estimated 5.9% of women did not use antenatal care services while 73.0% completed at least four consultations. HIV testing coverage (89.9%) was higher than for syphilis (71.6%). Agreement between medical records and interviews was mostly moderate (0.40-0.75). Important variables were frequently not recorded, such as timing of syphilis testing, which was not recorded in 49.6%. CONCLUSIONS: The concentration of HIV and syphilis infections in the coastal region of Ecuador highlights the need for intensified prevention and a response tailored to local epidemic conditions. Major challenges for the elimination initiative include achieving universal, early access to antenatal care, improving coverage of HIV and syphilis testing, and improving the quality of medical records to support progress monitoring.