为了观察棉鼠丝虫微丝蚴在大白鼠体内的分布情况,作者以含有棉鼠丝虫幼虫的阳性螨叮咬大白鼠。在潜隐期,即感染后15～51天(微丝蚴血症出现前),解剖6只鼠;在微丝蚴血症期即微丝蚴血症开始出现后的1～224天,解剖45只鼠;在阴转期,即血内微丝蚴阴转后7～251天,解剖32只鼠,总共解剖观察83只鼠。将新鲜的胸膜渗出液涂片及肺、心、肝、脾、肾和其他一些组织切片,按常 In order to observe the distribution of the microfilariae of the microfilaria in cotton rats, the authors bite the rats with a positive mite containing the filariasis larva of the cotton rat. In the latent period, ie, 15 to 51 days after infection (microfilariaemia before emergence), 6 mice were dissected; in microfilaremia period microfilariaemia began to appear 1-24 days after dissection 45 mice; in the period of overcast, that is, after the blood transfixed microfilaria 7 ~ 251 days, 32 rats were dissected, a total of 83 rats were dissected. Fresh pleural effusion smear and lung, heart, liver, spleen, kidney and some other tissue sections, according to often