Abstract
Background: Large spatial heterogeneity was observed in the dengue fever outbreak in Guangzhou in 2014, however, the underlying reasons remain unknown. We examined whether socio-ecological factors affected the spatial distribution and their interactive effects. Methods: Moran’s I was applied to first examine the spatial cluster of dengue fever in Guangzhou. Nine socio-ecological factors were chosen to represent the urbanization level, economy, accessibility, environment, and the weather of the 167 townships/streets in Guangzhou, and then the geographical detector was applied to analyze the individual and interactive effects of these factors on the dengue outbreak. Results: Four clusters of dengue fever were identified in Guangzhou in 2014, including one hot spot in the central area of Guangzhou and three cold spots in the suburban districts. For individual effects, the temperature (q = 0.33) was the dominant factor of dengue fever, followed by precipitation (q = 0.24), road density (q = 0.24), and water body area (q = 0.23). For the interactive effects, the combination of high precipitation, high temperature, and high road density might result in increased dengue fever incidence. Moreover, urban villages might be the dengue fever hot spots. Conclusions: Our study suggests that some socio-ecological factors might either separately or jointly influence the spatial distribution of dengue fever in Guangzhou.
Highlights
Dengue fever (DF) is an infectious disease transmitted by Aedes albopictus and Aedes aegypti [1].The World Health Organization (WHO) has estimated that more than 50 million dengue cases occur each year and almost half of the world’s population live in areas where dengue is endemic [2,3]
In 2014, 37,322 indigenous dengue fever cases were reported in Guangzhou
Our study only focused on a single could adjust the spatial heterogeneity between the study units and may provide more city,sufficiently and it is needed tofor be further clarified in future studies
Summary
Dengue fever (DF) is an infectious disease transmitted by Aedes albopictus and Aedes aegypti [1].The World Health Organization (WHO) has estimated that more than 50 million dengue cases occur each year and almost half of the world’s population live in areas where dengue is endemic [2,3]. I was applied to first examine the spatial cluster of dengue fever in Guangzhou. Nine socio-ecological factors were chosen to represent the urbanization level, economy, accessibility, environment, and the weather of the 167 townships/streets in Guangzhou, and the geographical detector was applied to analyze the individual and interactive effects of these factors on the dengue outbreak. The temperature (q = 0.33) was the dominant factor of dengue fever, followed by precipitation (q = 0.24), road density (q = 0.24), and water body area (q = 0.23). The combination of high precipitation, high temperature, and high road density might result in increased dengue fever incidence.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Environmental Research and Public Health
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
