【摘要】 1986～1989年连续四年在江汉平原腹地以中华按蚊为传播媒介的马来丝虫病流行区,选择互不相邻的二个村进行人群微丝蚴率、微丝蚴密度、中华按蚊叮人率及密度、经产蚊比率、生殖营养周期和嗜血习性等丝虫病传播参数的调查研究。结果表明:在江汉平原马来丝虫病流行区,当地人群微丝蚴率在1.55%以下,微丝蚴密度低于15mf/120μl 时,传播被阻断;微丝蚴率为2.31%左右、微丝蚴密度在22mf/120μl 时,丝虫病传播仍在继续。当地丝虫病传播阈值为微丝蚴率1.55～2.31%、微丝蚴密度15～22mf/120μl 之间。更多还原

【Abstract】 A survey on the transmission index of malayan filariasis was conducted in two villages far away from each other where Anopheles sinensis was a chief vector for the transmission of malayan filariasis in Jianghan Plain from 1986 to 1989.The microfilarial rates(MFR),microfilarial density(MFD),human-biting rates and vector density,the parous rate of Anopheles sinensis,the gonotrophic cycle and feeding preference of the vector were all investigated in the experimental villages.The results showed that when MFR is under 1.55% and MFD is lower than 15mf/120μl,the transmission of filariasis would have been blocked;when MFR is around 2.31% and MFD is around 22mf/120μl,the transmission would be continuing in filariasis endemic area of Jianghan Plain.更多还原