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在经过防治微丝蚴率降至1%左右的马来丝虫病流行区一乐山市中区裕农、台子、石头村,在终止防治措施的条件下,1984～1989年连续观察6年。微丝蚴率分别由1985年的0.81、1.03和1.36%降至0、0.15和0.39%;1985年俭出的6例微丝蚴血症者中,2例因年老死亡,至第6年已有31例转阴,1987年在石头村新检出微丝蚴血症者1例;剖检嗜人按蚊11590只,阳性蚊55只,平均幼丝虫感染率0.47%,7只蚊含第3期幼虫13条;剖检中华按蚊1781只,仅1987年在石头村一高密度微丝蚴血症者家中检获阳性蚊2只,含第1期幼虫3条。裕农村已连续3年未检获阳性蚊。认为裕农、台子村的丝虫病流行已趋终止,中华按蚊已失去媒介作用。
After the prevention and treatment of microfilariae rate dropped to about 1% of the prevalence of a zone of endemic a Leshan City, Central, farmers, Taiwan, Stone Village, in the termination of prevention and treatment measures, 1984 to 1989 for 6 consecutive years of observation. Microfilaria rates decreased from 0.81, 1.03 and 1.36% in 1985 to 0, 0.15 and 0.39%, respectively. Of the 6 microfilaremia patients who were fished in 1985, 2 died from old age to 6 years 31 cases had been negative, 1 case of microfilaremia was newly detected in Stone Village in 1987. There were 11,590 Anopheles anthropophagus and 55 positive mosquitoes, the average infection rate was 0.47% and 7 mosquitoes Including 13 larvae of the third stage; 1781 Anopheles sinensis were dissected, and only 2 positive mosquitoes were seized in the home of a high-density microfilaremia patient in Shitou village in 1987, including 3 larvae of the first stage. Yu rural areas have not been seized for three consecutive positive mosquitoes. It is considered that the prevalence of filariasis in Yuenong and Taizi villages has come to an end and Anopheles sinensis has lost its role as a medium.