Epidemiological characteristics and space-time analysis of the 2015 dengue outbreak in the metropolitan region of Tainan city, Taiwan

Ting Wu Chuang, Ka Chon Ng, Thi Luong Nguyen, Luis Fernando Chaves

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The metropolitan region of Tainan City in southern Taiwan experienced a dengue outbreak in 2015. This manuscript describes basic epidemiological features of this outbreak and uses spatial and temporal analysis tools to understand the spread of dengue during the outbreak. The analysis found that, independently of gender, dengue incidence rate increased with age, and proportionally affected more males below the age of 40 years but females above the age of 40 years. A spatial scan statistic was applied to detect clusters of disease transmission. The scan statistic found that dengue spread in a north-south diffusion direction, which is across the North, West-Central and South districts of Tainan City. Spatial regression models were used to quantify factors associated with transmission. This analysis indicated that neighborhoods with high proportions of residential area (or low wetland cover) were associated with dengue transmission. However, these association patterns were non-linear. The findings presented here can help Taiwanese public health agencies to understand the fundamental epidemiological characteristics and diffusion patterns of the 2015 dengue outbreak in Tainan City. This type of information is fundamental for policy making to prevent future uncontrolled dengue outbreaks, given that results from this study suggest that control interventions should be emphasized in the North andWest-Central districts of Tainan city, in areas with a moderate percentage of residential land cover.

Original languageEnglish
Article number396
JournalInternational Journal of Environmental Research and Public Health
Volume15
Issue number3
DOIs
Publication statusPublished - Mar 1 2018

Fingerprint

Dengue
Taiwan
Disease Outbreaks
Spatio-Temporal Analysis
Wetlands
Policy Making
Public Health
Incidence

Keywords

  • Dengue
  • Land use/land cover
  • Space-time analysis

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

Epidemiological characteristics and space-time analysis of the 2015 dengue outbreak in the metropolitan region of Tainan city, Taiwan. / Chuang, Ting Wu; Ng, Ka Chon; Nguyen, Thi Luong; Chaves, Luis Fernando.

In: International Journal of Environmental Research and Public Health, Vol. 15, No. 3, 396, 01.03.2018.

Research output: Contribution to journalArticle

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