The study was conducted in the parish of Westmoreland which is located on the western end of the island. West-moreland has an area of 807 square kilometers and is the 8th largest of the fourteen parishes. Based on the 2001 census, the parish has a population of 138 947. Agriculture, mainly sugarcane cultivation, is the predominant means of livelihood for residents (20). In 2006, there were 18 suspected cases of dengue in the parish (9 were confirmed). Most of the cases occurred in the Bethel Town, Darliston and Savanna-la-mar Health Districts (11).