摘要
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。
Malayan filariasis was highly prevalent in the villages of Yunong,Taiziand Shitou, the suburban area of Leshan City,Sichuaa Province.The microfilarial rate dropped to 0.817—1.36% in 1985 by the measttres of eliminating the sources of infection.Since then,no centrel measures were conducted. But the miciofliarial rate was decreased continuonsly to O,0.15% and 0.39% respectively in 1988.Among 36 microiilaremias detezte~ in 1983.2 die-t of old age, while 31 became negative in 1989.Among 11 590 An.anthropophagus dissected during 1985—1988,55 were filariat larva positives with 7 containing 13 L3.The na turalin fection rates and the L3 rates of An.anthropophagus were 0—1.2% and 0—0.3% in each willage. Among 1781 An.sinensis 2 were forthl containing 3 L1 in one household with high density of microfilaria (334 mf/120μl). The results showed that there was no evidence that An sinensis played animportant role in the transmission of the disease and that prevalence teemed to be ceased in these villages as observed.
出处
《中国寄生虫病防治杂志》
CSCD
1990年第2期105-107,共3页
Chinese Journal of Parasitic Disease Control
