摘要
目的分析1989-2014年江西省人群土源性线虫病流行现状和变化趋势,为制定防治对策提供科学依据。方法对1989、2002年和2014年3次全国人体寄生虫病抽样调查的江西省调查数据和资料进行归类分析,调查时采用改良加藤厚涂片法检查土源性线虫感染情况。结果江西省人群的土源性线虫感染率由1989年的77.67%下降至2014年的6.30%,下降了91.89%,其中蛔虫感染率从71.11%下降到0.87%,下降率为98.78%;鞭虫感染率由29.67%下降至0.95%,下降率为96.80%;钩虫感染率由17.63%下降到4.66%,下降率为73.57%。3次调查土源性线虫女性感染率均高于男性,除2002年和2014年浙闽生态区外,其它生态区土源性线虫女性均高于男性。3次调查各年龄组人群土源性线虫感染率均出现下降的趋势,但随年龄组增大呈下降趋缓现象,<10岁年龄组下降率为97.03%,>70岁年龄组下降率为80.62%。2014年土源性线虫感染人数占肠道寄生虫感染人数的65.4%。结论江西省各生态区人群土源性线虫平均感染率均呈显著下降趋势,但仍然是肠道寄生虫感染的主要虫种。土源性线虫感染的优势虫种排序已由1989年蛔虫、钩虫和鞭虫转换为2014年钩虫、鞭虫和蛔虫。农村女性和高年龄组人群是目前土源性线虫病防治工作的重点人群,钩虫是防治的重点虫种。
Objective To analyze the status and trends of soil-transmitted nematode infections in Jiangxi Province from 1989 to 2014, so as to provide the evidence for generating the strategy of soil-transmitted nematode prevention and control. Methods The data of three epidemiological surveys on human parasitic diseases （in 1989, 2002 and 2014） were classified and analyzed. The stool examination by Kato-Katz＇ s thick smear method was adopted for the investigation of soil-transmitted nematode infections. Results The total infection rate of soil-transmitted nematodes decreased by 91.89% from 77.67% in 1989 to 6.30% in 2014, in which the infection rate ofAscaris lumbricoides decreased by 98.78% from 71.11% to 0.87%, the infection rate of Trich- uris trichiura decreased by 96.80% from 29.67% to 0.95%, and the infection rate of hookworm declined by 73.57% from 17.63% to 4.66%. The infection rates of soil-transmitted nematodes in the female were higher than those in the male in three surveys. In different ecological districts, the infection rates of soil-transmitted nematodes in the female were also higher than those in the male, except in Zhe-Min Ecological District in 2002 and 2014. A declined trend of the infection was showed in all age-groups in the three surveys, but it slowed down by the growth of age, i.e., the reduction rate was 97.03% in the age group of 〈 10 years while 80.62% in the age group of 〉70 years. In 2014, the number of persons infected with soil-transmitted nematodes occupied 65.4% of the whole number of persons infected with intestinal parasites. Conclusions The mean infection rates of soil-transmit- ted nematodes decrease obviously in human population in different ecological districts, but the soft-transmitted nematodes are still the main species in intestinal parasite infections. The sequence of dominant species changes from A. lumbricoides, hook- worm and T. trichiura in 1989 to hookworm, T. trichiura and A. lumbricoides in 2014. The rural female and elder people are the key population, while hookworm is the key species for the prevention and control of soil-transmitted nematodes.
出处
《中国血吸虫病防治杂志》
CAS
CSCD
北大核心
2017年第6期710-715,共6页
Chinese Journal of Schistosomiasis Control
基金
江西省卫生与计划生育委员会课题(20152019
20176028
20166026
20156041)
关键词
土源性线虫病
流行趋势
感染率
江西省
Soil-transmitted nematodosis
Prevalent trend
Infection rate
Jiangxi Province
