From 1991 to 1992, three communities in the former medium endemic area, the northern part of Yancheng were investigated on the distribution of patients with advanced filariasis bancrofti. 1991-1992年,选择盐城北部原班氏丝虫病中度流行区的3个乡,对晚期丝虫病分布现状作了普查。
Culex pipiens pallens is one of important media to transmit Filariasis due to Wuchereria bancrofti and epidemic encephalitis B and so on which is widely found in northern China. 淡色库蚊(Culexpipienspallens)是班氏丝虫病和流行性乙型脑炎等疾病的重要传播媒介,广泛存在于我国北方地区。