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Artículo

Landscape determinants of Saint Louis encephalitis human infections in Córdoba city, Argentina during 2010

Vergara Cid, CarolinaIcon ; Estallo, Elizabet LiliaIcon ; Almiron, Walter RicardoIcon ; Contigiani de Minio, Marta Silvia; Spinsanti, Lorena Ivana
Fecha de publicación: 17/03/2013
Editorial: Elsevier Science
Revista: Acta Tropica
ISSN: 0001-706X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Epidemiología

Resumen

Saint Louis encephalitis virus (SLEV) is endemic in Argentina. During 2005 an outbreak occurred in Córdoba. From January to April of 2010 a new outbreak occurred in Córdoba city with a lower magnitude than the one reported in 2005. Understanding the association of different landscape elements related to SLEV hosts and vectors in urban environments is important for identifying high risk areas for human infections, which was here evaluated. The current study uses a case-control approach at a household geographical location, considering symptomatic and asymptomatic human infections produced by SLEV during 2010 in Córdoba city. Geographical information systems and logistic regression analysis were used to study the distribution of infected human cases and their proximity to water bodies, vegetation abundance, agricultural fields and housing density classified as high/low density urban constructions. Population density at a neighborhood level was also analyzed as a demographic variable. Logistic regression analysis revealed vegetation abundance was significantly associated with the presence of human infections by SLEV. A map of probability of human infections in Córdoba city was derived from the logistic model. The model highlights areas that are more likely to experience SLEV infections. Landscape variables contributing to the outbreak were the proximity to places with vegetation abundance (parks, squares, riversides) and the presence of low density urban constructions, like residential areas. The population density analysis shows that SLEV infections are more likely to occur when population density by neighborhood is lower. These findings and the predictive map developed could be useful for public health surveillance and to improve prevention of vector-borne diseases.
Palabras clave: Saint Louis Encephalitis Virus , Argentina , Geographical Information Systems , Human Infections , Landscape Elements
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/43036
DOI: http://dx.doi.org/10.1016/j.actatropica.2012.12.005
URL: https://www.sciencedirect.com/science/article/pii/S0001706X1200383X
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Articulos(IIBYT)
Articulos de INSTITUTO DE INVESTIGACIONES BIOLOGICAS Y TECNOLOGICAS
Citación
Vergara Cid, Carolina; Estallo, Elizabet Lilia; Almiron, Walter Ricardo; Contigiani de Minio, Marta Silvia; Spinsanti, Lorena Ivana; Landscape determinants of Saint Louis encephalitis human infections in Córdoba city, Argentina during 2010; Elsevier Science; Acta Tropica; 125; 3; 17-3-2013; 303-308
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