为探讨基本消灭丝虫病后丝虫病的流行动态和残存微丝蚴血症的传播作用，１９８４－ １９９３年连续十年对原高、中度流行区的１８ 个村进行纵向监测，结果人群微丝蚴率和密度逐年下降，分别由 １９８４ 年的 ０１７％ 和 １４２ 条／１２０μｌ，下降至 １９９１ 年的 ００３４％ 和 １２ 条／１２０μｌ，微丝蚴阳性村于第 ２－ ９ 年降为０。３２ 例微丝蚴血症者，均于 ３－ ６ 年内全部自然转阴。１９８８ 年以来６ 年中除１９９１ 年在病家发现含 Ｉ期幼丝虫蚊 ３ 只外，各年均未发现阳性蚊。年传播潜势呈明显下降，在 １９８８－ １９９３年间除 １９９１ 年年传播潜势 ０１２ 外，其余年份均为 ０，结果提示，我省丝虫病传播已被阻断 In order to explore the prevalence of filariasis after the basic elimination of filariasis and the transmission of the remaining microfilaremia, longitudinal surveys of 18 villages in the original high and moderate endemic areas from 1984 to 1993 were conducted longitudinally. Results The population The microfilariae rate and density decreased year by year, from 017% and 142 / 120μl in 1984, respectively, to 0034% and 12 / 120μl in 1991, 2-9 years reduced to 0.32 cases of microfilaremia who were all naturally negative in 3-6 years. Six years since 1988, except in 1991, the patients found that there were 3 I-phase immature mosquitoes, and no positive mosquito was found in all the years. The annual transmission potential showed a marked decline. In addition to the annual transmission potential of 012 in 1991-1998, all the remaining years were 0, suggesting that the transmission of filariasis in our province had been blocked