Impact of road networks on the distribution of dengue fever cases in Trinidad, West Indies.

摘要: This study examined the impact of road networks on distribution dengue fever cases in Trinidad, West Indies. All confirmed hemorrhagic (DHF) observed during 1998 were georeferenced and spatially located a map Trinidad using Geographic Information Systems software. A new digital geographic layer representing these was created distances from to nearest classified category (5 classifications based functional utility system) examined. The distance each DHF case 5 subsets determined then subjected an ANOVA t-test determine levels association between minor (especially 3rd 4th class roads) found away forests, especially 5th roads). frequency different classes was: 0% (1st roads), 7% (2nd 32% (3rd 57% (4th 4% (5th road). data clearly demonstrated that both 3 4 roads account for 89% nearby cases. These results represent first evidence being restricted forested areas major highways would be useful when planning implementing control strategies Aedes aegypti mosquitoes.