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Epidemiol Infect. 2008 Jan;136(1):135-43. Epub 2007 Mar 15.

Environmental factors and incidence of dengue fever and dengue haemorrhagic fever in an urban area, Southern Thailand.

Author information

1
Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand. sthammapalo@yahoo.com

Abstract

Using the enumeration district (ED) block level this study looked at the incidence of dengue fever and dengue haemorrhagic fever (DF/DHF) within the Songkhla municipality in Thailand. Each of the 146 blocks in this area were considered as study units and surveyed for their environmental characteristics. A total of 287 cases of DH/DHF occurring in the year 1998 were selected for this study and the location of their homes mapped. Clustering analysis showed point clustering of the homes (P<0.0001) which was probably due to high density habitation, without any actual prevalence of case clustering. There was no evidence of clustering of the ED blocks with an incidence of DF/DHF (P=0.32). DF/DHF incidence for each block was strongly associated with the percentages of shop-houses, brick-made houses and houses with poor garbage disposal (all P<0.01). DF/DHF control should be emphasized for the areas which have a predominance of these housing types.

PMID:
17359563
PMCID:
PMC2870760
DOI:
10.1017/S0950268807008126
[Indexed for MEDLINE]
Free PMC Article

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