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本文报道了正安县石井乡及德江县尤盘村基本消灭班氏丝虫病后不再采取防治措施,连续5年及间隔10年纵向监测的结果。石井乡人群微丝蚴率由1980年的0.15％降至1981年0.07％、1983年0.04％及1985年0.05％,阳性者120mm~3血平均微丝蚴密度分别为6.5、11.5及3.5条,5年内未发现新感染病人;IFAT阳性率逐年下降;龙盘村人群微丝蚴率由1975年0.8％降至1985年0.48％,但尚存在较高密度微丝蚴病人,蚊媒阳性率较高,并发现Ⅲ期幼虫,血检亦查出1例新病人,IFAT阳性率高达23.5％,证明丝虫病仍在蔓延。分析认为,人群微丝蚴率及微丝蚴密度是影响丝虫病传播的重要因素,对于已达到基本消灭丝虫病的地区,人群微丝蚴率降至0.5％时,不宜再采取大规模查治措施,而应着重抓好薄弱环节的监测工作.
This paper reports the results of longitudinal monitoring no longer taking control measures after the initial elimination of Bancroftian filariasis in Shijing Town, Zheng’an County and in Yu Pan Village, Dejiang County, for five consecutive years and 10 years apart. The population of microfilariae in Shijing Township decreased from 0.15% in 1980 to 0.07% in 1981, 0.04% in 1983 and 0.05% in 1985. The average density of microfilariae of 120mm ~ 3 blood in positive individuals were 6.5, 11.5 and 3.5 respectively, The newly infected patients were not found in 5 years; the positive rate of IFAT decreased year by year; the microfilariae rate in Longpan village decreased from 0.8% in 1975 to 0.48% in 1985, but the positive rate of mosquito was still higher in patients with higher density of microfilariae High, and found Ⅲ larvae, blood tests also found a new patient, IFAT positive rate as high as 23.5%, that filariasis is still spreading. Analysis, the crowd microfilaria rate and microfilaria density is an important factor affecting the transmission of filariasis, filariasis has been basically eliminated the area, the crowd microfilaria rate down to 0.5%, should not be taken to large-scale Investigation and treatment measures, but should focus on monitoring the weak links.