【摘要】 目的　了解平垸行洪、退田还湖、移民建镇地区人、畜血吸虫感染的变化 ,探讨其防治效果。方法　选择 4个县、市、区的 6个村为试区 ,采用 IHA筛查 ,粪便孵化法定性 ,改良加藤厚涂片法定量检查确诊病人和塑料杯顶管孵化法检查耕牛感染的方法 ,连续 3年观察 ,分析人、畜血吸虫感染变化 ,并对洲滩螺情及人、畜粪便污染情况进行监测。结果　 1999- 2 0 0 1年试区人群血吸虫感染率分别为 1.2 0 % - 4 .6 9%、0 .4 3% - 3.82 %和 0 .2 6 % - 2 .87% ,人群 EPG为 0 .12 - 4 .31,病人 EPG为 5 .90 - 5 1.0 0。血吸虫病人 ,农民占 70 .97% - 87.72 % ,学生占 12 .2 8% - 2 9.0 3% ,15岁 - 6 0岁人群占 74 .19% - 92 .5 0 %。耕牛感染率 ,除江夏区沿江村、黄州区王岭村呈上升外 ,其它村呈逐年下降 ;洲滩钉螺面积 ,除江夏区三角洲下降外 ,其它试区无明显增减。滩地野粪污染密度为 1.2 2 -12 .0 0份 / hm2 ,牛粪占 90 .83% ,血吸虫卵阳性率为 12 .5 2 % (1.35 % - 37.2 1% )。结论　实施平垸行洪、移民建镇地区 ,老年、儿童血吸虫感染人数减少 ,但务农青壮年人群其感染率下降不明显。耕牛感染率在不同试点村则有升有降 ,试区洲滩野粪污染情况较为严重。更多还原

【Abstract】 Objective To understand the changes of schistosome infections of human and cattle that moved from outside embankment to town and evaluate the effectiveness of the control strategies. Methods The residents and cattle infections in 6 villages were investigated by IHA, hatching or Kato-Katz tests from 1990 to 2001, and analysed. The distribution of Oncomelania snails and the status contaminated with stool of human beings and domestic animals in marshland were inverstigated.Results Infection rates in human were 1.20%-4.69%, 0.34%-3.82%, 0.26%-2.87% in the 3 years. Population EPG were 0.12-4.31, patients EPG 5.90-51.00 in study villages. In all patients, the ratios of farmers were 70.96%-85.00%, students 15.00%-29.03%, 15-60 age-group patients 74.19%-92.50%. Cattle infection rates were increasing in Yanjiang Villages and Wangling Village, The others showed decreasing tendency. The snail area in Jiangxia Sanjiaozhou declined and there were no changs in other areas. The density of stool contamination in marshland was 1.22-12.00/hm 2, 90.83% of which contaminated by cattle. The positive rate of schistosome eggs in face was 12.52%(1.35%-37.21%). Conclusion In the area that population moves from outside embankment to town, schistosomiasis cases of aged persons and children decreased significantly. Most patients were adult who were field laborer. The infection rates did not show signifi- cant decrease. Cattle infection rates did not regularly change in pilot areas. The pilot areas were seriously contaminated with faces.更多还原