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1.
Rev. panam. salud pública ; 19(4): 282-289, abr. 2006. tab, graf
Artículo en Español | LILACS | ID: lil-433446

RESUMEN

Over the past 10 years, the American Region has witnessed the reintroduction and dissemination of dengue virus serotype 3. In this paper we describe the main clinical and epidemiologic features of the dengue 3 epidemic that broke out in Cuba between June 2001 and March 2002, as well as the measures that were undertaken to eliminate it. A total of 14 524 confirmed cases were reported, 12 889 (88,7 percent) of them in the City of Havana. Eighty-one cases of dengue hemorrhagic fever were confirmed, three of which died. Secondary infection, white skin color, sickle cell anemia, and bronchial asthma were risk factors for dengue hemorrhagic fever. Active clinical and epidemiologic surveillance and laboratory support were critical to the early detection of transmission and to the monitoring of the epidemic. Widespread involvement of the community and its different sectors, participation of the mass media with a single leadership in command, and strong political will were the key factors that made it possible to eliminate transmission. This epidemic was one more example of the risk of dengue epidemics faced by countries in the area, including those that have strong surveillance and control programs. It also served to show that by applying the principles established by the Pan American Health Organization and the World Health Organization for dengue control, transmission can be stopped.


Asunto(s)
Adolescente , Adulto , Niño , Preescolar , Humanos , Lactante , Persona de Mediana Edad , Virus del Dengue/clasificación , Dengue/epidemiología , Brotes de Enfermedades , Factores de Edad , Cuba/epidemiología , Dengue Grave/epidemiología , Dengue Grave/mortalidad , Dengue/diagnóstico , Dengue/prevención & control , Organización Panamericana de la Salud , Vigilancia de la Población , Factores de Riesgo , Serotipificación , Factores de Tiempo , Organización Mundial de la Salud
2.
Rev. panam. salud pública ; 10(3): 169-173, sept. 2001.
Artículo en Español | LILACS | ID: lil-323783

RESUMEN

Objetivo. Determinar el impacto de la vacunación de menores de 2 años en Cuba contra Haemophilus influenzae tipo b (Hib), principal agente causal de la meningitis bacteriana en ese país. Métodos. La disponibilidad de vacunas conjugadas eficaces contra Hib motivó la vacunación nacional en 1999 de niños menores de 2 años, que alcanzó una cobertura de 97%. El impacto se evaluó mediante el Sistema Nacional de Vigilancia de Meningoencefalitis Bacterianas (SNVMEB). Resultados. La eficacia global de la vacunación se estimó en 99% y la incidencia general de la meningoencefalitis por Hib disminuyó de 1,3 a 0,6 por 100 000 habitantes (46,1%), observándose la mayor reducción en niños menores de 5 años (56,1%). En los menores de 1 año se redujo 70,5% y en el resto de los grupos de menores de 5 años disminuyó entre 25,9 y 49,6%. En el grupo diana para la vacunación, la incidencia se redujo 61,1%; entre los niños de este grupo que contrajeron la meningoencefalitis por Hib, solamente 8 (24,2%) estaban vacunados, 7 de ellos con una sola dosis, aplicada 1 mes antes de enfermar. Conclusiones. Se ha demostrado que la vacunación a gran escala de los niños menores de 2 años contra Hib en Cuba a través del SNVMEB ha logrado disminuir notablemente la incidencia de meningoencefalitis por Hib.


Objective. To assess the effectiveness of mass vaccination in Cuba of children under 2 years of age against Haemophilus influenzae type b (Hib), the most common causative pathogen of bacterial meningitis. Methods. The availability of effective Hib conjugate vaccines led to a nationwide vaccination program in 1999 targeting all children under 2 years of age, with a 97% coverage rate achieved. To assess the program's impact, data from 1998 and 1999 from the National Bacterial Meningitis Reporting System were used. Results. Vaccination efficacy was estimated at 99%. The overall incidence of Hib meningitis declined 46.1%, from 1.3 to 0.6 cases per 100 000 population. The greatest overall reduction, of 56.1%, occurred among children under 5 years of age. Among children under 1 year of age, the reduction was 70.5%, and among the rest of the age groups of children under 5, incidence decreased between 25.9% and 49.6%. In the group targeted for vaccination, incidence decreased 61.1%. Among children in the target group who contracted Hib meningitis, only 8 cases (24.2%) had been vaccinated, most with a single dose applied 1 month before becoming ill. Conclusions. Hib vaccination of all children under 2 years of age in Cuba greatly reduced the incidence of Hib meningitis, as measured by the National Bacterial Meningitis Reporting System


Asunto(s)
Meningitis Bacterianas , Vacunas contra Haemophilus , Haemophilus influenzae tipo b , Cuba
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