文档介绍：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 (Lymphatic filaria worm)
班氏吴策线虫
Wuchereria bancrofti 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
长度: 296m 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 malayi
Microfilaria of Wuchereria bancrofti
Brugia 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 is as long as broad).