1、丝虫 (filaria worm )组织寄生线虫 : 淋巴 /结缔组织虫媒传播我国主要为两种淋巴丝虫引起淋巴丝虫病 丝虫中文学名班氏吴策线虫 班氏丝虫马来布鲁线虫 马来丝虫旋盘尾丝虫 盘尾丝虫罗阿罗阿丝虫 罗阿丝虫 淋巴丝虫淋巴丝虫(Lymphatic filaria worm)班氏吴策线虫班氏吴策线虫Wuchereria bancrofti马来布鲁线虫马来布鲁线虫Brugia malayi一、形态（ Morphology）Adult worm：丝线状，双管型微丝蚴 (Microfilaria)：头隙、鞘膜、体核、尾核 两种微丝蚴形态比较W.bancrofti B.malayi长度： 296m
2、 230m形态： 柔和 僵硬头隙 (长 /宽 ): 1:1 2:1 体核： 清晰 融合尾核： 无 有 Microfilariae measure 270 by 8 m, have a sheath and a tail with terminal constriction, elongated nuclei and absence of nuclei in the cephalic space. They have nocturnal periodicity. (Wet mount preparation). Microfilaria of Brugia malayiMicrofilaria of Wuchereria bancroftiBrugia malayi: the tail is tapered and present a constriction. The last two nuclei are divided by the constriction.Brugia malayi: the cephalic space is longer than broad (in W.bancrofti is as long as broad).
