Spatial, environmental and entomological risk factors analysis on a rural dengue outbreak in Lundu District in Sarawak, Malaysia.

摘要: The objective of this study was to elucidate the association various risk factors with dengue cases reported in Lundu district, Sarawak, by analyzing interaction between environmental, entomological, socio-demographic factors. Besides conventional serological and house surveys, also used GIS technology generate geographic environmental data on Aedes albopictus transmission. Seven villages were chosen based high number reported. A total 551 households surveyed. An overall description background basic facilities presented together entomological geographical profiles. For ovitrap studies, systematic random sampling used. Serological tests indicated that 23.7% 215 samples had a history dengue, either recent or previous infections. Two (0.9%) confirmed IgM ELISA 49 (22.8%) IgG responses. 32,838 eggs collected 56 days trapping. Cluster done determine whether any (entomological geographical) influenced location. These clusters defined as border East Kalimantan roadside along Lundu/Biawas trunk road. analyzed using SPSS version 10.01. Descriptive analysis frequency, means, median To variables reported, describe differences two villages, two-sample t-test, Pearson's Chi-Square Accurate maps produced overlay density function, which facilitates map visualization report generating phases. This highlights use differential Global Positioning System mapping sites 1m accuracy. Analysis revealed there are significant attributable container density, distance from main road, Ae. ovitraps set indoor, outdoor dumping (Person's = 6.111, df 1, p < 0.01). Further t-test showed indoor mosquitoes egg count, count higher at compared villages. potential including those generated investigated. None investigated associated