Spatio-temporal and neighborhood characteristics of two dengue outbreaks in two arid cities of Mexico

Little is currently known about the spatial-temporal dynamics of dengue epidemics in arid areas. This study assesses dengue outbreaks that occurred in two arid cities of Mexico, Hermosillo and Navojoa, located in northern state of Sonora. Laboratory confirmed dengue cases from Hermosillo (N=2730) an...

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Bibliographic Details
Published in:Acta tropica 2017-03, Vol.167, p.174-182
Main Authors: Reyes-Castro, Pablo A., Harris, Robin B., Brown, Heidi E., Christopherson, Gary L., Ernst, Kacey C.
Format: Article
Language:English
Subjects:
Cities
Climate
Dengue - epidemiology
Dengue outbreak
Disease Outbreaks
Humans
Mexico - epidemiology
Population Density
Residence Characteristics
Socioeconomic Factors
Space-time clustering
Spatio-Temporal Analysis
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Summary:Little is currently known about the spatial-temporal dynamics of dengue epidemics in arid areas. This study assesses dengue outbreaks that occurred in two arid cities of Mexico, Hermosillo and Navojoa, located in northern state of Sonora. Laboratory confirmed dengue cases from Hermosillo (N=2730) and Navojoa (N=493) were geocoded by residence and assigned neighborhood-level characteristics from the 2010 Mexican census. Kernel density and Space-time cluster analysis was performed to detect high density areas and space-time clusters of dengue. Ordinary Least Square regression was used to assess the changing socioeconomic characteristics of cases over the course of the outbreaks. Both cities exhibited contiguous patterns of space-time clustering. Initial areas of dissemination were characterized in both cities by high population density, high percentage of occupied houses, and lack of healthcare. Future research and control efforts in these regions should consider these space-time and socioeconomic patterns.
ISSN:0001-706X
1873-6254
DOI:10.1016/j.actatropica.2017.01.001