Determinantes del estado de vacunación infantil: abordando la brecha de equidad en República Dominicana-2019 / Determinants of childhood immunization status: addressing the equity gap in the Dominican Republic­2019

Introducción: Las desigualdades amenazan el progreso del país hacia la equidad y la cobertura de vacunación infantil. Siendo la cobertura inferior a la meta del 90% de la Organización Mundial de la Salud. Objetivo: Identificar los determinantes sociales y las desigualdades en el estado de vacunación infantil en República Dominicana, 2019. Métodos: Se realiza un análisis basado en la Encuesta de Indicadores Múltiples por Conglomerados. Incluyendo una muestra ponderada de 1674 niños de 12-23 meses. Se calcula la regresión logística multinomial para identificar factores asociados a la vacunación. Adoptando p<0,05 para significación estadística. Utilizando una razón de probabilidades ajustada con intervalo de confianza del 95%. Empleando HEAT 4.0 para medir desigualdades y SPSS.23 para gestión y análisis de datos. Resultados: La edad media de los niños fue 17,4±3,5 meses. El 33% de ellos estaban completamente vacunados. La cobertura fue significativamente menor entre hijos de madre sin educación [AOR= 7,27; IC95%= 2,98­17,74]. La mayor cobertura se concentra en niños con altos niveles de educación y riqueza. Conclusión: Para lograr una cobertura de vacunación completa y equitativa, las intervenciones de salud pública deben diseñarse para satisfacer las necesidades de grupos de alto riesgo.

Introduction: In the Dominican Republic, inequalities threaten progress towards childhood vaccination equity and coverage, the latter being inferior to the World Health Organization's 90% goal. Objective: Identify the social determinants and inequalities in the state of childhood vaccination in the Dominican Republic, 2019. Methods: An analysis based on the Multiple Indicator Cluster Surveys is conducted. Including a weighted sample of 1674 children aged 12-23 months. The multinomial logistic regression is calculated to identify factors associated with vaccination. Using p<0,05 for statistical significance and an adjusted probability ratio with a 95% confidence interval. Employing HEAT 4.0 to measure inequalities and SPSS.23 for data management and analysis. Results: The children's mean age was 17,4±3,5 months. 33% of them were completely vaccinated. Coverage was significantly lower in children of mothers without education [AOR= 7,27; CI95%= 2,98­17,74]. Coverage was the highest in kids with high levels of education and wealth. Conclusion: To achieve complete and equitable vaccine coverage, public health interventions should be designed to satisfy the needs of high-risk groups.

Epidemiología del dengue en Centroamérica y República Dominicana / Epidemiology of dengue in Central America and the Dominican Republic

Resumen Introducción: Centroamérica experimenta una alta carga de la enfermedad por dengue aportando cerca de 8% de todos los casos del continente. Este trabajo reporta la epidemiología del dengue en la subregión en un período de 10 años. Objetivos: Documentar la epidemiología del dengue en Centro América y República Dominicana. Material y Métodos: Período de estudio: años 2005-2014. Se recopilaron y analizaron los datos de casos y muertes por dengue de los países de Centro América y República Dominicana, reportados por los Ministerios de Salud y se corroboró con los datos publicados en los boletines en línea y la base de datos interactiva de la Organización Panamericana de la Salud (OPS). Se obtuvieron estadísticas poblacionales de los Institutos Nacionales de Estadística y Censo de cada país. Resultados: Durante el período de estudio fueron notificados 1.118.464 casos de dengue. Reportados 32.431 casos graves, 888 personas fallecidas. La letalidad por caso de dengue fue en promedio 0,08%. Los cuatro serotipos de dengue circularon durante el decenio estudiado. Discusión: La información clínica y epidemiológica, indica tasas de incidencia alta, que han fluctuado en los últimos años, con co-circulación significativa de varios serotipos a la vez. Conclusiones: Se identificaron diferencias notorias en la recolección de datos de la vigilancia entre países. Se determinó un patrón epidemiológico heterogéneo.

Background: Central America experiences a high burden of dengue reporting about 8% of all cases in the continent. This work reports the epidemiology of dengue in the sub region in a 10 years period. Aim: To describe the epidemiology of dengue in Central America and the Dominican Republic. Methods: Study period from 2005 to 2014. The data on dengue cases and deaths of the countries of Central America and the Dominican Republic, reported by the Ministries of Health, were compiled and analyzed and corroborated with the data published in the online bulletins and the interactive database of the Pan American Health Organization (PAHO). Population statistics were obtained from the National Statistics and Census Institutes of each country. Results: During the study period, 1,118,464 cases of dengue were notified. There were 32,431 serious cases reported, 888 people died. The lethality per case of dengue was on average 0.08%. The four dengue serotypes circulated during the decade analyzed. Discussion: Clinical and epidemiological information indicates high incidence rates, which have fluctuated in recent years, with significant co-circulation of several serotypes at the same time. Conclusions: Notorious surveillance data collection differences were identified between countries, determining a heterologous epidemiological pattern.

Remarks on the possibility of introducing the fractionated dose of the inactivated poliomyelitis vaccine in the Latin American Child Immunization Schedule

Abstract Given that the last notified case of poliomyelitis due to wild poliovirus type 2 was in 1999, in 2012, the Strategic Advisory Group of Experts on Immunization (SAGE) of the World Health Organization (WHO) recommended the withdrawal of the type 2 component of oral polio vaccine (OPV) and the introduction of a bivalent OPV (bOPV) in all countries by 2016. WHO recommended also that the withdrawal should be preceded by the introduction of at least one dose of inactivated poliovirus vaccine (IPV) in routine immunization schedules. The introduction of IPV prior to the change of the bOPV in 2016 to trivalent OPV (tOPV) was based on the concept of ensuring that a substantial proportion of the population would be protected against type 2 polio after the removal of the type 2 OPV. However, the world's two producers of IPV (Bilthoven Biologicals and Sanofi) have faced problems in the production of this vaccine and therefore reported a reduction of the global supply of IPV. In response to the potential shortage of IPV, at a meeting held on March 10 2017, the SAGE and Technical Advisory Group (TAG) of the Pan American Health Organization (PAHO) urged the countries in the Latin American region to replace the routine administration of the full doses of inactivated polio vaccine (IPV-C) in the immunization schedule (administered by intramuscular route), administering a fraction of the full dose in two intradermal shots (IPV-f). The possibility of this strategy was analyzed by opinion leaders convened by the Paraguayan Society of Pediatrics with the support of the Latin American Society of Pediatric Infectious Diseases (SLIPE) and Latin American Association of Pediatrics (ALAPE). This document presents the results of the discussion.

Consideraciones referente a la posibilidad de introducir la dosis fraccionada de la vacuna antipoliomielitis inactivada en el calendario de Inmunizaciones del Niño Latinoamericano / Remarks on the possibility of the introduction of fractionated dose of the inactivated poliomyelitis vaccine in the Latin American Child Immunization Schedule

As last notified case of poliomyelitis due to wild poliovirus type 2 was 1999, in 2012, the Strategic Advisory Group of Experts on Immunization (SAGE) of the World Health Organization (WHO) recommended the withdrawal of the type 2 component of oral polio vaccine (OPV) and the introduction of bivalent OPV (bOPV) in all countries by 2016. WHO recommended also that the withdrawal should be preceded by the introduction of at least one dose of inactivated poliovirus vaccine (IPV) in routine immunization schedules. The introduction of IPV prior to the change of the bOPV in 2016 to trivalent OPV (tOPV) was based on the concept of ensuring that a substantial proportion of the population would be protected against type 2 polio after the removal of the type 2 OPV. However, the world's two producers of IPV (Bilthoven Biologicals and Sanofi) have faced problems in the production of this vaccine and therefore reported reduction in IPV global supply. In response to the possible shortage of IPV, the SAGE and Technical Adviser Group (TAG) of the Pan American Health Organization (PAHO), in the meeting of March 10, 2017, has urged that countries in the Latinamerican region should replace the routine administration of the full doses of polio inactivated vaccine (IPV-C) in the immunization schedule (administered by intramuscular route) by the administration of a fraction of the full dose in two shots by intradermal route (IPV-f). The possibility of this strategy was analyzed by leaders of opinions gathered by the call of the Paraguayan Pediatric Society with the support of the Latin American Society of Pediatric Infectious Diseases (SLIPE) and Latin American Association of Pediatrics (ALAPE). The results of the discussion are presented in this document.

Orígenes e importancia de la Red de Enfermedad de Kawasaki en América Latina (REKAMLATINA) / Origin and importance of the Latin American Kawasaki Disease Network (REKAMLATINA)

Kawasaki disease is the leading cause of acquired cardiac disease in children. Although the epidemiology of the disease has been well described in Japan, other Asian countries, Europe, Australia and North America, the epidemiology and disease burden in Latin American children is unknown. For this reason, the idea of establishing a research network on Kawasaki disease in children from Latin America was born, becoming this the largest Kawasaki disease international multinational research network and in which 20 countries of the region will be integrated.

La enfermedad de Kawasaki representa la causa más común de cardiopatía adquirida en niños. Si bien es cierto que la epidemiología de la enfermedad ha sido muy bien descrita en Japón y otros países de Asia, Europa, Australia y Norte América, se desconoce la epidemiología y carga de enfermedad en niños de América Latina. Por esta razón nació la idea de establecer una red de investigación de enfermedad de Kawasaki en niños de América Latina, constituyéndose ésta en la red internacional multinacional más grande de investigación de la epidemiología de la enfermedad y donde se integran 20 países de la región.