[江西省土源性线虫感染的流行趋势]

[Trends of soil-transmitted nematode infections in Jiangxi Province].

作者信息

Xiao-Jun Zeng, Wei-Sheng Jiang, Shu-Ying Xie, Jun Ge, Zhao-Jun Li, Chun-Qin Hang, Yue-Min Liu, Fang-Yu Yi, Hong-Gen Chen

机构信息

Jiangxi Provincial Institute of Parasitic Diseases, Nanchang 330096, China.

出版信息

Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi. 2017 Dec 5;29(6):710-715. doi: 10.16250/j.32.1374.2017151.

DOI:10.16250/j.32.1374.2017151

PMID:29469448

Abstract

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 of decreased by 98.78% from 71.11% to 0.87%, the infection rate of 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-transmitted nematodes decrease obviously in human population in different ecological districts, but the soil-transmitted nematodes are still the main species in intestinal parasite infections. The sequence of dominant species changes from , hookworm and in 1989 to hookworm, and 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.

摘要

目的

分析1989年至2014年江西省土源性线虫感染现状及流行趋势，为制定土源性线虫病防治策略提供依据。

方法

整理分析1989年、2002年和2014年3次人体寄生虫病流行病学调查资料。采用改良加藤厚涂片法检查粪便，调查土源性线虫感染情况。

结果

土源性线虫总感染率由1989年的77.67%下降至2014年的6.30%，下降了91.89%，其中蛔虫感染率由71.11%下降至0.87%，下降了98.78%；鞭虫感染率由29.67%下降至0.95%，下降了96.80%；钩虫感染率由17.63%下降至4.66%，下降了73.57%。3次调查中女性土源性线虫感染率均高于男性。不同生态区除2002年和2014年浙闽生态区外，女性土源性线虫感染率也高于男性。3次调查各年龄组感染率均呈下降趋势，但随年龄增长下降幅度减缓，即<10岁年龄组下降率为97.03%，>70岁年龄组下降率为80.62%。2014年，土源性线虫感染者占肠道寄生虫感染者总数的65.4%。