Philippine E-Journals

The relative indoor density of Aedes sp. was determined through ovitraps installed in a cluster of 10 households in Barangay Sta. Cruz, Makati City. The house of a dengue case served as the index household from which 9 households located within a 300-meter radius were randomly selected. Each sample household was provided an indoor ovitrap that was installed in a low, dark and protected corner of the house. Ovitraps were collected and subsequently installed every Monday and Thursday so that each sample household had an ovitrap installed throughout the duration of the study. A total of 50 ovitraps were collected and examined for the presence of Aedes sp. larvae. Lawanit paddles from the ovitraps were reared in the laboratory and the number of larvae were counted and recorded. Ovitrap surveillance resulted to a mean larvitrap index of 5.32 larvae/ovitrap with a standard deviation of 5.30 and a mean house index of 40% for the period of January 17, 2005 to February 3, 2005.