Distribution of Dengue Cases and Transovarial Infection on Aedes aegypti : Corellational Study in Meteseh Village, Indonesia Martini M, Novita I. Bella, Hadi M, Hestiningsih R, Yuliawati S, Mawarni A
Magister of Epidemiologi, Diponegoro University
Abstract
Dengue Hemorrhagic Fever has emerged as an Disease Outbreak nowdays. The incidence of DHF in the last 2 years has increased from 2018 IR 14.01 / 100,000 population to 2019 IR 70.03 / 100,000 population. The ability of the dengue virus to survive in nature by two mechanisms, namely horizontal and transovarial. The aim of this study is the relationship of larval density and transovarial infection in Aedes aegypti mosquitoes with the occurrence of Dengue Fever with a spatial analysis approach. This study used a cross sectional design with observational analytics. Conducted in August - October with a sample of 33 houses a total of 363 houses carried out by 11 Hamlets (RW) in Meteseh Village area of Tembalang District. Examination of larvae and installation of ovitrap, after ovitrap results were collected, rearing was performed and immunohistochemical examination on female Aedes aegypti was ≥5 days old. As a result, Transovarial transmission of dengue virus in female Aedes aegypti mosquitoes was found in 8 Hamlets (RW) with transovarial transmission index (ITT) around 5-20%. Statistical test results showed there is no relationship between larval density and the incidence of DHF and there was a relationship between transovarial infection in the incidence of DHF with P Value 0.043 <0.05. This study provides information that some female Aedes aegypti mosquitoes show a relationship between transovarial infections in the incidence of DHF and spatial analysis in the distribution of dengue cases have spatially related to transovarial infections.
Keywords: Dengue Hemorrhagic Fever, Transovarial Infection, Spatial Analysis, Aedes aegypti
