What do community-based dengue control programmes achieve? A systematic review of published evaluations

Heintze, Christoph; Garrido, Marcial Velasco; Kroeger, Axel

doi:10.1016/j.trstmh.2006.08.007

Cited by 189 publications

(187 citation statements)

References 18 publications

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“…Además, ante la ausencia de una vacuna para controlar la enfermedad (16), y considerando que las principales estrategias de prevención se han enfocado en la movilización y participación comunitaria (17)(18)(19)(20), sería de gran relevancia poder desarrollar instrumentos que permitan modelar y predecir epidemias de dengue en el país. La información que se desprende de este tipo de elementos podrá ser empleada por las autoridades de salud en estrategias que propendan por el fortalecimiento de los sistemas de vigilancia en salud pública y la planificación de los recursos destinados para su control.…”

Section: Resultsunclassified

Modelización del efecto de la variabilidad climática local sobre la transmisión de dengue en Medellín (Colombia) mediante análisis de series temporales

et al. 2012

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Introducción. El dengue es una enfermedad de transmisión vectorial de gran impacto en la salud pública. La transmisión del dengue es afectada por factores entomológicos, socioculturales y económicos. Además, la variabilidad climática juega un importante papel en la dinámica de transmisión. Un amplio consenso científico ha indicado que la fuerte asociación entre la enfermedad y las variables climáticas podría ser empleada para desarrollar modelos que expliquen la incidencia de la enfermedad. Objetivo. Desarrollar un modelo que permita comprender la dinámica de transmisión del dengue en Medellín y predecir incrementos en la incidencia de la enfermedad. Materiales y métodos. Se empleó la incidencia de dengue como variable dependiente y como variables independientes, los factores climáticos (temperatura máxima, media y mínima, humedad relativa y precipitación) registrados a escala semanal. Se utilizó el programa Expert Modeler para desarrollar un modelo que explique mejor el comportamiento de la enfermedad. Mediante modelos ARIMA, se seleccionaron las variables climáticas que tuvieron una relación significativa con la variable dependiente. Resultados. El 34 % de la variabilidad observada se explicó por el modelo. La precipitación fue la variable climática que mostró una asociación estadísticamente significativa con la incidencia del dengue, pero con un rezago de 20 semanas. Conclusiones. La transmisión del dengue en Medellín se vio afectada por la variabilidad climática, en particular, por la precipitación. La fuerte asociación entre el dengue y la precipitación permitió construir un modelo que ayuda a comprender la dinámica de transmisión, información que será de gran utilidad para el desarrollo de adecuadas y oportunas estrategias de control.Palabras clave: dengue, clima, salud pública, epidemiología, predicción, precipitación atmosférica. doi: http://dx.doi.org/10.7705/biomedica.v33i0.1444 Modelling the effect of local climatic variability on dengue transmission in Medellin (Colombia) by means temporary series analysisIntroduction: Dengue fever is a major impact on public health vector-borne disease, and its transmission is influenced by entomological, sociocultural and economic factors. Additionally, climate variability plays an important role in the transmission dynamics. A large scientific consensus has indicated that the strong association between climatic variables and disease could be used to develop models to explain the incidence of the disease. Objective: To develop a model that provides a better understanding of dengue transmission dynamics in Medellin and predicts increases in the incidence of the disease. Materials and methods: The incidence of dengue fever was used as dependent variable, and weekly climatic factors (maximum, mean and minimum temperature, relative humidity and precipitation) as independent variables. Expert Modeler was used to develop a model to better explain the behavior of the disease. Climatic variables with significant association to the dependent variable were selected through A...

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Section: Resultsunclassified

Modelización del efecto de la variabilidad climática local sobre la transmisión de dengue en Medellín (Colombia) mediante análisis de series temporales

et al. 2012

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“…Most efforts in vector control are centred at the household and community levels, but with few exceptions, the achievements to date have been largely unspectacular and there have been difficulties in scaling up from the project level 119 . Nevertheless, such communitybased interventions are widely seen as the most promising way of improving delivery and achieving long-term control of the vector through behaviour change.…”

Section: Vector Controlmentioning

confidence: 99%

Dengue: a continuing global threat

et al. 2010

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Dengue fever and dengue haemorrhagic fever are important arthropod-borne viral diseases. Each year, there are ~50 million dengue infections and ~500,000 individuals are hospitalized with dengue haemorrhagic fever, mainly in Southeast Asia, the Pacific and the Americas. Illness is produced by any of the four dengue virus serotypes. A global strategy aimed at increasing the capacity for surveillance and outbreak response, changing behaviours and reducing the disease burden using integrated vector management in conjunction with early and accurate diagnosis has been advocated. Antiviral drugs and vaccines that are currently under development could also make an important contribution to dengue control in the future.Dengue is the most important arthropod-borne viral infection of humans. Worldwide, an estimated 2.5 billion people are at risk of infection, approximately 975 million of whom live in urban areas in tropical and sub-tropical countries in Southeast Asia, the Pacific and the Americas 1 . Transmission also occurs in Africa and the Eastern Mediterranean, and rural Europe PMC Funders GroupAuthor Manuscript Nat Rev Microbiol. Author manuscript; available in PMC 2015 February 19. Published in final edited form as:Nat Rev Microbiol. 2010 December ; 8(12 0): S7-16. doi:10.1038/nrmicro2460. Europe PMC Funders Author ManuscriptsEurope PMC Funders Author Manuscripts communities are increasingly being affected. It is estimated that more than 50 million infections occur each year, including 500,000 hospitalizations for dengue haemorrhagic fever, mainly among children, with the case fatality rate exceeding 5% in some areas [1][2][3][4] . The geographical areas in which dengue transmission occurs have expanded in recent years (FIG. 1), and all four dengue virus serotypes (DENV-1-4) are now circulating in Asia, Africa and the Americas, a dramatically different scenario from that which prevailed 20 or 30 years ago (FIG. 2). The molecular epidemiology of these serotypes has been studied in an attempt to understand their evolutionary relationships 11 .This Review will provide an update on our understanding of the pathogenesis of this successful pathogen, how we diagnose and control infection and the progress that has been made in vaccine development. Dengue virus pathogenesisDengue viruses belong to the genus flavivirus within the Flaviviridae family. DENV-1-4 evolved in non-human primates from a common ancestor and each entered the urban cycle independently an estimated 500-1,000 years ago 12 . The virion comprises a spherical particle, 40-50 nm in diameter, with a lipopolysaccharide envelope. The positive singlestrand RNA genome (FIG. 3), which is approximately 11 kb in length, has a single open reading frame that encodes three structural proteins -the capsid (C), membrane (M) and envelope (E) glycoproteins -and seven non-structural proteins (NS1, NS2A, NS2B, NS3, NS4A, NS4B and NS5 [18][19][20] . ADE occurs when mononuclear phagocytes are infected through their Fc receptors by immune complexes that form between DE...

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“…16 Although systematic literature reviews and meta-analyses of the results of these "single focus" studies can provide a comprehensive picture of the mix of interventions needed for successful vector control, 5,17 this approach has several limitations. Comparing results is difficult because studies employ different methods and focus on different factors.…”

Section: Introductionmentioning

confidence: 99%

Eco-bio-social determinants of dengue vector breeding: a multicountry study in urban and periurban Asia

Arunachalam

Tana²,

Espino

et al. 2010

Bull World Health Org

205

187

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Objective To study dengue vector breeding patterns under a variety of conditions in public and private spaces; to explore the ecological, biological and social (eco-bio-social) factors involved in vector breeding and viral transmission, and to define the main implications for vector control. Methods In each of six Asian cities or periurban areas, a team randomly selected urban clusters for conducting standardized household surveys, neighbourhood background surveys and entomological surveys. They collected information on vector breeding sites, people's knowledge, attitudes and practices surrounding dengue, and the characteristics of the study areas. All premises were inspected; larval indices were used to quantify vector breeding sites, and pupal counts were used to identify productive water container types and as a proxy measure for adult vector abundance. Findings The most productive vector breeding sites were outdoor water containers, particularly if uncovered, beneath shrubbery and unused for at least one week. Peridomestic and intradomestic areas were much more important for pupal production than commercial and public spaces other than schools and religious facilities. A complex but non-significant association was found between water supply and pupal counts, and lack of waste disposal services was associated with higher vector abundance in only one site. Greater knowledge about dengue and its transmission was associated with lower mosquito breeding and production. Vector control measures (mainly larviciding in one site) substantially reduced larval and pupal counts and "pushed" mosquito breeding to alternative containers. Conclusion Vector breeding and the production of adult Aedes aegypti are influenced by a complex interplay of factors. Thus, to achieve effective vector management, a public health response beyond routine larviciding or focal spraying is essential.Une traduction en français de ce résumé figure à la fin de l'article. Al final del artículo se facilita una traducción al español. ‫املقالة.‬ ‫لهذه‬ ‫الكامل‬ ‫النص‬ ‫نهاية‬ ‫يف‬ ‫الخالصة‬ ‫لهذه‬ ‫العربية‬ ‫الرتجمة‬

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What do community-based dengue control programmes achieve? A systematic review of published evaluations

Cited by 189 publications

References 18 publications

Modelización del efecto de la variabilidad climática local sobre la transmisión de dengue en Medellín (Colombia) mediante análisis de series temporales

Modelización del efecto de la variabilidad climática local sobre la transmisión de dengue en Medellín (Colombia) mediante análisis de series temporales

Dengue: a continuing global threat

Eco-bio-social determinants of dengue vector breeding: a multicountry study in urban and periurban Asia

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