选择越南北部3省6个频发登革热的乡村进行社会公众动员清洁水体及投放剑水蚤等措施控制消除登革热媒介伊蚊,同时用昆虫学、临床及血清学方法监测防制效果,并选择4个临近乡村为对照。6个实验乡村共有1 1 6 75户,居民4 96 47人。1 998年4月着手居民生活水源调查,确认其是否适合剑 We selected 6 villages in dengue fever in 6 provinces of northern Vietnam to carry out measures to control and eliminate dengue vector mosquito, such as mobilizing clean water and spraying daphnia, and monitoring the control effect by entomological, clinical and serological methods and selecting 4 A nearby village for the control. There are 116,600 households in 6 pilot villages and 4,967 people in total. In April 1998, a survey of residents’ living water resources was conducted to confirm whether it is suitable for the sword