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目的：探讨自１９８６年湖南省达到基本消灭丝虫病后该病残存传染源消长规律及传播作用。方法：应用常规方法进行病原学、蚊媒和血清学纵向、横向监测以及流动人口监测，对薄弱环节采取适当的巩固措施。结果：在５５个县（市）的横向监测中，末次检出微丝蚴阳性者系于１９９３年，蚊媒监测已有１２年未查见人体幼丝虫感染蚊。血清学（ＩＦＡＴ）监测，平均人群抗体阳性率从１９８７年的１３．１５％至１９９６年降为１．０６％，与非流行区人群水平相似。５个县（市）６个纵向监测点连续１０－１７年的观察结果，检获的１１例残存微丝蚴血症者，有１０例均在１－１０年内阴转，另１例至１４年未阴转。蚊媒监测，２个马来丝虫病监测点均未查见幼丝虫，４个班氏丝虫病监测点于第１－３年查见幼丝虫，其自然感染率为０．３８％－１．９８％，第４年以后均为阴性。结论：湖南省基本消灭丝虫病后残存传染源逐年减少，丝虫病传播已被阻断。
OBJECTIVE: To investigate the rule of the decline and spread of the source of residual infectious disease and the transmission of the disease in Hunan Province after it basically eradicated filariasis in 1986. Methods: The etiology, mosquito vectors and serology vertical and horizontal monitoring and floating population monitoring were conducted by routine methods, and proper consolidation measures were taken on the weak links. Results: Among 55 counties (cities) in the horizontal monitoring, the last detection of microfilaria positive in 1993, mosquito monitoring 12 years have not been found in the body of young filariasis mosquitoes. Serological (IFAT) surveillance, the average population antibody positive rate from 13.15% in 1987 to 1.06% in 1996, and non-endemic populations similar levels. In 5 counties (cities) 6 longitudinal monitoring points for 10-17 consecutive observations, the seizure of 11 cases of microfilaremia microfeemia, 10 cases were within 1 to 10 years of negative conversion, and the other 1 to 14 years Not overcast. Mosquito vector monitoring, two male filariasis monitoring sites did not see the young filariasis, four Bancroftian filariasis monitoring points in the 1-3 years to see young filariasis, the natural infection rate was 0.38 % -1.98%, after the 4th year are negative. Conclusion: The source of residual infection after the basic elimination of filariasis in Hunan Province has been decreasing year by year, and the transmission of filariasis has been blocked.