Risk Factors for Infection During a Severe Dengue Outbreak in El Salvador in 2000

Hayes, John M.; García-Rivera, Enid J; Flores-Reyna, Roberto; Suárez-Rangel, Gloria; Rodríguez-Mata, Tito; Coto-Portillo, René; Baltrons-Orellana, Rafael; Mendoza-Rodríguez, Elmer; Garay, Betty Fuentes De; Jubis-Estrada, Juan; Hernández-Argueta, Rolando; Biggerstaff, Brad J.; Rigau‐Pérez, José G.

doi:10.4269/ajtmh.2003.69.629

Cited by 48 publications

(44 citation statements)

References 19 publications

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“…52 People who kept discarded car tires on their household premises had a 50% higher risk of a recent dengue infection, consistent with another study. 53 Vehicle tires have played a major role in the international spread of dengue. 54 They seem to be a preferred breeding site for Ae.…”

Section: Discussionmentioning

confidence: 99%

Dengue Seroprevalence and Risk Factors for Past and Recent Viral Transmission in Venezuela: A Comprehensive Community-Based Study

Velasco-Salas¹,

Sierra²,

Guzmán³

et al. 2014

The American Society of Tropical Medicine and Hygiene

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Abstract. Dengue transmission in Venezuela has become perennial and a major public health problem. The increase in frequency and magnitude of recent epidemics prompted a comprehensive community-based cross-sectional study of 2,014 individuals in high-incidence neighborhoods of Maracay, Venezuela. We found a high seroprevalence (77.4%), with 10% of people experiencing recent infections. Multivariate logistic regression analysis showed that poverty-related socioeconomic factors (place and duration of residence, crowding, household size, and living in a shack) and factors/constraints related to intradomiciliary potential mosquito breeding sites (storing water and used tires) were linked with a greater risk of acquiring a dengue infection. Our results also suggest that transmission occurs mainly at home. The combination of increasingly crowded living conditions, growing population density, precarious homes, and water storage issues caused by enduring problems in public services in Maracay are the most likely factors that determine the permanent dengue transmission and the failure of vector control programs.

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Section: Discussionmentioning

confidence: 99%

Dengue Seroprevalence and Risk Factors for Past and Recent Viral Transmission in Venezuela: A Comprehensive Community-Based Study

Velasco-Salas¹,

Sierra²,

Guzmán³

et al. 2014

The American Society of Tropical Medicine and Hygiene

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“…However, maintaining active participation over a long period of time is a challenge and there is ample evidence that source reduction methods are often implemented poorly and consequently have little impact (Chadee et al, 2005;Hayes et al, 2003). Therefore, forecasts offer an evidence-base for activating community programs over a restricted period of time.…”

Section: Resultsmentioning

confidence: 99%

Quantifying the added value of climate information in a spatio-temporal dengue model

Lowe

Cazelles

Rácz

et al. 2015

Stoch Environ Res Risk Assess

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Dengue is the world's most important vector-borne viral disease. The dengue mosquito and virus are sensitive to climate variability and change. Temperature, humidity and precipitation influence mosquito biology, abundance and habitat, and the virus replication speed. In this study, we develop a modelling procedure to quantify the added value of including climate information in a dengue model for the 76 provinces of Thailand, from 1982-2013. We first developed a seasonal-spatial model, to account for dependency structures from one month to the next and between provinces. We then tested precipitation and temperature variables at varying time lags, using linear and nonlinear functional forms, to determine an optimum combination of time lags to describe dengue relative risk. Model parameters were estimated using Integrated Nested Laplace Approximation (INLA).This approach provides a novel opportunity to perform model selection in a Bayesian framework, while accounting for underlying spatial and temporal dependency structures and linear or nonlinear functional forms. We quantified the additional variation explained by interannual climate variations, above that provided by the seasonal-spatial model. Overall, an additional 8% of the variance in dengue relative risk can be explained by accounting for interannual variations in precipitation and temperature in the previous month. The inclusion of nonlinear functions of climate in the model framework improved the model for 79% of the provinces. Therefore, climate forecast information could significantly contribute to a national dengue early warning system in Thailand.

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“…tyres and drums, which were responsible for most of the Aedes being produced 60 . Studies in El Salvador have demonstrated that infested discarded cans, plastic containers and tire casings were risk factors for dengue infection with abundance-attributable fractions of 4%, 13% and 31%, respectively 61 .…”

Section: Prevention and Controlmentioning

confidence: 99%

Dengue in the Americas: challenges for prevention and control

Gómez–Dantés

Willoquet

2009

Cad. Saúde Pública

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Dengue is the most important vector-borne disease in the Americas and threatens the lifes of millions of people in developing countries. Imprecise IntroductionDengue is now the most important vector-borne disease in the Americas and threatens the health of millions of people that live in urban, suburban and rural environments. Clinical and public health services have been unable to diminish this disease since there is no vaccine available to prevent infection, no effective medical treatments that avert the development of severe symptoms and no sustainable control measures against the vector that guarantee protection of affected communities.Dengue was initially identified as breakbone fever in 1790 in Philadelphia, U.S.A 1 , and later spread throughout the Americas, until the Pan American Health Organization (PAHO) launched an Aedes aegypti eradication campaign to combat yellow fever in the 1950s and 1960s that came close to eliminating the vector from the continent 2 . Although the geographical distribution of the vector is similar to its distribution before the eradication campaigns 3 , populations during the "eradication era" were principally rural. In the last 40 years, there has been intensive urbanization due to massive migration from agricultural areas to cities. Although urbanization in Latin America and the Caribbean had already reached 41% of the population by 1950, the population living in urban areas is expected to reach between 82 and 84% by 2030; by then the Latin America and Caribbean region will be the second most urbanized REVISÃO REVIEW Gómez-Dantés H, Willoquet JR S20 Cad. Saúde Pública, Rio de Janeiro,

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Risk Factors for Infection During a Severe Dengue Outbreak in El Salvador in 2000

Cited by 48 publications

References 19 publications

Dengue Seroprevalence and Risk Factors for Past and Recent Viral Transmission in Venezuela: A Comprehensive Community-Based Study

Dengue Seroprevalence and Risk Factors for Past and Recent Viral Transmission in Venezuela: A Comprehensive Community-Based Study

Quantifying the added value of climate information in a spatio-temporal dengue model

Dengue in the Americas: challenges for prevention and control

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