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      Situación epidemiológica de varicela en el municipio de Pradera (Valle del Cauca, Colombia) entre 2003 a 2007 Translated title: Epidemiological situation of chickenpox in Pradera municipality (Valle del Cauca, Colombia) from 2003 to 2007

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          Abstract

          Introducción: La varicela es una enfermedad viral aguda altamente contagiosa, de comienzo repentino, con fiebre moderada, síntomas generales, erupción cutánea de tipo maculopapular y vesicular; afecta principalmente a menores de 10 años. Objetivos: Describir el comportamiento de la varicela entre 2003/2007 en Pradera (Valle del Cauca). Métodos: Se realizó un estudio observacional descriptivo producto de los registros del Sistema de Vigilancia en Salud Pública de Pradera, secundarios a la recolección de casos de varicela notificados por los prestadores de servicios de salud municipales semanalmente. Resultados: Se observó un incremento de 10 veces las tasas de varicela en 2006 respecto a 2003; afectó principalmente a menores de 1 a 4 años (14 veces), seguido de adultos jóvenes entre 15 a 44 años (13 veces) y de 45 a 59 años (9 veces); se enfermaron también personas de edades extremas (menores de un año - mayores de 60). Conclusiones: Por su alto poder epidémico la varicela requiere para su control y prevención la movilización de diferentes sectores poblacionales: salud, social y educación; es un evento que al no controlarse adecuadamente afecta a grupos poblacionales inhabituales (mayores de 15 años y menores de 1 año). Las estrategias de control y prevención implementadas entre las secretarías de Salud Municipal de Pradera y Departamental del Valle al parecer contribuyeron a mitigar la diseminación de este evento durante 2007.

          Translated abstract

          Introduction: Chickenpox is a acute viral illness highly contagious of sudden onset with mild fever, general symptoms, maculopapular rash and vesicular type, affecting mainly children under 10 years. Objectives: To describe the behavior of chickenpox between 2003 /2007 in Padrera. (Valle del Cauca). Methods: A descriptive study was made of the records product Surveillance System in Public Health in Pradera secondary to the collection of cases of chickenpox reported by providers of municipal health services weekly. Results: We observed an increase of 10 times the rates for chickenpox in 2006 compared to 2003; this mainly affected children from 1 to 4 years (14 times), followed by young adults between 15 and 44 years (13 times) and 45 to 59 years (9 times); there were also people ill in extreme age (under one year - over 60). Conclusions: The Chickenpox by a high epidemic power required for control and prevention mobilization of different sectors of the population: health, social and education; it is an event that when not controlling properly affects unusual population groups (older than 15 years and less than 1 year). The prevention and control strategies implemented between the Secretaries Local Health in Pradera and Department of Valle helped to mitigate further spread of this event in 2007.

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          Varicella disease after introduction of varicella vaccine in the United States, 1995-2000.

          Before licensure of varicella vaccine in 1995, varicella was a universal childhood disease in the United States, causing 4 million cases, 11,000 hospitalizations, and 100 deaths every year. To examine population-based disease surveillance data in 3 communities to document the impact of the varicella vaccination program. Active surveillance for varicella conducted among the populations of Antelope Valley, Calif; Travis County, Tex; and West Philadelphia, Pa; from January 1, 1995, to December 31, 2000. Reporting sites included child care centers, schools, universities, physicians, public health clinics, hospitals, emergency departments, and households. Trends in number and rate of varicella cases and hospitalizations; varicella vaccine coverage. From 1995 through 1998, in each surveillance area, the number of verified varicella cases varied from year to year with marked springtime seasonality. In 1999, the number and rates of varicella cases and hospitalizations declined markedly. From 1995 through 2000, in Antelope Valley, Travis County, and West Philadelphia, varicella cases declined 71%, 84%, and 79%, respectively. Cases declined to the greatest extent among children aged 1 to 4 years, but cases declined in all age groups, including infants and adults. In the combined 3 surveillance areas, hospitalizations due to varicella declined from a range of 2.7 to 4.2 per 100,000 population in 1995 through 1998 to 0.6 and 1.5 per 100,000 population in 1999 and 2000, respectively (P =.15). By 2000, vaccine coverage among children aged 19 to 35 months was 82.1%, 73.6%, and 83.8% in Los Angeles County, Texas, and Philadelphia County, respectively. Varicella disease has declined dramatically in surveillance areas with moderate vaccine coverage. Continued implementation of existing vaccine policies should lead to further reductions of varicella disease in these communities and throughout the United States.
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            Elaboración de corredores o canales endémicos mediante planillas de cálculo

            Las epidemias o brotes pueden ser definidos como un exceso en el número de casos de un problema de salud dado, en una población, un período y un lugar en particular. Sin embargo, determinar lo que constituye un exceso implica conocer lo que es normal o de esperar. La elaboración de canales o corredores endémicos permite definir los valores de casos esperados y de esta forma evidenciar de forma gráfica la aparición de un nú mero mayor de casos. En el presente trabajo se describe una nueva metodología para la realización de estos canales endémicos, en la que se utilizan las planillas de cálculo Qpro y Excel, mediante la determinación de la media geométrica de lastasas históricas y su in tervalo de confianza. Se presenta también un corredor endémico acumulativo que facilita la vigilancia de sucesos endémicos de baja incidencia.
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              Varicella and Herpes Zoster in Madrid, based on the Sentinel General Practitioner Network: 1997–2004

              Background Varicella (chickenpox) is the primary disease caused by varicella-zoster virus. It is extremely contagious and is frequent in children. Indeed, in the absence of vaccination, a high proportion of the population is liable to contract it. Herpes zoster -more frequent among adults- is caused by reactivation of the latent virus. The objective of this study is to describe the status of and time trend for varicella and herpes zoster in the Madrid Autonomous Region prior to the introduction of the vaccine to the general population. Methods Data source: individualised varicella and herpes zoster case records kept by the Madrid Autonomous Region Sentinel General Practitioner Network for the period 1997–2004. Cumulative incidences, crude and standardised incidence rates, and age-specific rates of varicella and herpes zoster were calculated for each year. Kendall's Tau-b correlation coefficient was calculated to evaluate whether incidence displayed a time trend. Spectral density in the time series of weekly incidences was estimated using a periodogram. Results Standardised annual varicella incidence rates ranged from 742.5 (95% CI: 687.2 – 797.7) to 1239.6 (95% CI: 1164.5 – 1313.4) cases per 100 000 person-years. Most cases affected children, though complications were more frequent in adults. Varicella incidence displayed an annual periodicity but no trend over time. Most herpes zoster cases occurred at advanced ages, with incidence registering a rising annual trend but no seasonality factor. Conclusion In the absence of vaccination, no significant changes in varicella incidence were in evidence recent years, though these were observed in the incidence of herpes zoster. Sentinel general practitioner networks are a valid instrument for surveillance of diseases such as varicella. Further varicella vaccination-coverage and vaccine-efficacy studies are called for.
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                Author and article information

                Journal
                sun
                Revista Salud Uninorte
                Salud, Barranquilla
                Fundación Universidad del Norte, División de Ciencias de la (Barranquilla, Atlantico, Colombia )
                0120-5552
                2011-7531
                June 2010
                : 26
                : 1
                : 54-64
                Affiliations
                [02] Cuernavaca Morelos orgnameInstituto Nacional de Salud Pública orgdiv1Centro de Investigación en Salud Poblacional México
                [01] orgnameInstituto Mexicano del Seguro Social, IMSS
                Article
                S0120-55522010000100007 S0120-5552(10)02600107
                510d1b9e-98c4-4ebc-b6ed-832ce7b2569d

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 15 September 2010
                : 04 November 2010
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 44, Pages: 11
                Product

                SciELO Colombia

                Categories
                Artículos originales

                endemic channel,outbreak,contagious disease,scholar population,Chickenpox,canales endémicos,brote,enfermedad infectocontagiosa,población escolar,Varicela

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