Dom Nazri Che, Faiz Madzlan Muhammad, Nadira Yusoff Siti Noor, Hassan Ahmad Abu, Ismail Rodziah, Nazrina Camalxaman Siti
Department of Environmental Health, Faculty of Health Sciences, Universiti Teknologi MARA, UiTM Kampus Puncak Alam, 42300 Selangor, Malaysia
Department of Environmental Health, Faculty of Health Sciences, Universiti Teknologi MARA, UiTM Kampus Puncak Alam, 42300 Selangor, Malaysia.
Trans R Soc Trop Med Hyg. 2016 Apr;110(4):237-45. doi: 10.1093/trstmh/trw015.
Dengue fever (DF) is an urban vector-borne disease transmitted by Aedes aegypti and Aedes albopictus. Both species deposit their eggs in favorable breeding sites either in natural or artificial containers. An understanding of their habitat characteristics is crucial in curbing DF outbreaks
A search and destroy survey was carried out at 10 dengue hotspot localities in Shah Alam, Malaysia. A quantitative in-situ measurement of selected physical parameters was conducted focusing on the environmental characteristics and the presence of vegetation. Larvae and pupae found in different types of container were morphologically identified.
Evidence of breeding was discovered in 62 containers. Rubber materials (container efficiency: 2.10), with clear water in the presence of dead vegetation (71 and 33% respectively) were found to be most efficient for pupae development. Furthermore, low water volume (60%) was preferred for breeding purposes. Kruskal-Wallis test demonstrated that water volume, wind velocity and distance from habitation were statistically significant towards dengue vectors.
Our findings have provided the profile of Aedes species based on environmental and water conditions in hotspot areas in Malaysia. These outcomes provide useful information regarding container characteristics that can enable selective elimination of vector habitat thus minimizing the risk of dengue outbreak.
登革热是一种由埃及伊蚊和白纹伊蚊传播的城市病媒传播疾病。这两种蚊子都将卵产在天然或人工容器中的适宜繁殖地。了解它们的栖息地特征对于控制登革热疫情至关重要。
在马来西亚莎阿南的10个登革热热点地区进行了搜索和清除调查。重点针对环境特征和植被情况对选定的物理参数进行了现场定量测量。对在不同类型容器中发现的幼虫和蛹进行了形态鉴定。
在62个容器中发现了繁殖迹象。发现橡胶材料(容器效率:2.10),在有枯死植被的情况下装有清水(分别为71%和33%)对蛹的发育最有效。此外,低水量(60%)更适合繁殖。克鲁斯卡尔-沃利斯检验表明,水量、风速和与居住地的距离对登革热媒介具有统计学意义。
我们的研究结果根据马来西亚热点地区的环境和水条件提供了伊蚊种类的概况。这些结果提供了有关容器特征的有用信息,可用于有选择地消除病媒栖息地,从而将登革热爆发的风险降至最低。