Liu D H, Guo J D, Jin W, Zhu L, Wang T P
Anhui Provincial Institute of Parasitic Diseases, Hefei 230061, China.
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi. 2020 Jan 8;32(1):87-90. doi: 10.16250/j.32.1374.2019242.
To understand the current status and changing tendency of human hookworm infections in Anhui Province.
According to the unified national survey scheme, a total of 48 survey sites were sampled from 16 counties (cities) in 4 ecological regions of Anhui Province using a stratified cluster random sampling method from 2014 to 2015. The hookworm eggs were detected in the fecal samples from permanent residents at ages of over one year living in the survey sites using a modified Kato-Katz thick smear method, and the subjects'health knowledge and behaviors were investigated using questionnaire survey.
A total of 12 300 persons were examined in the 48 survey sites from 4 ecological regions of Anhui Province between 2014 and 2015, and 259 subjects were identified with hookworm infections, with a mean prevalence of 2.11%. Among the four ecological regions, the North China Plain had the highest prevalence of human hookworm infections (3.02%) and in all survey sites, Linquan County had the highest prevalence (7.03%). was the predominant hookworm species identified (62.16%), and 65.64% had mild infections. The prevalence of human hookworm infections was significantly greater in women than in men ( = 4.16, < 0.05), and showed a tendency towards a rise with ages ( = 113.36, < 0.01). In addition, the prevalence of human hookworm infections varied in occupations ( = 159.41, < 0.01) and education levels ( = 34.95, < 0.01). Questionnaire survey showed low prevalence of human hookworm infections in subjects knowing the question"how hookworm infection occurs"and denying"using fresh stools for fertilization"( = 15.05, < 0.01; = 4.19, < 0.05).
The prevalence of human hookworm infections has greatly decreased in Anhui Province; however, the prevalence remains relatively high in some regions and populations. The North China Plain should be regarded as the key area for hookworm disease prevention and control, and housewives and populations with advanced ages and low educational levels are key targeted populations in Anhui Province.
了解安徽省人体钩虫感染的现状及变化趋势。
按照全国统一调查方案，2014年至2015年采用分层整群随机抽样方法，从安徽省4个生态区的16个县（市）共抽取48个调查点。用改良加藤厚涂片法检测调查点内1周岁以上常住人口粪便样本中的钩虫卵，并用问卷调查法调查受检者的健康知识和行为。
2014年至2015年，安徽省4个生态区的48个调查点共检查12 300人，查出钩虫感染者259人，平均感染率为2.11%。在4个生态区中，华北平原人体钩虫感染率最高（3.02%），在所有调查点中，临泉县感染率最高（7.03%）。 是检出的优势钩虫种类（62.16%），65.64%为轻度感染。女性人体钩虫感染率显著高于男性（ = 4.16， < 0.05），且有随年龄增长而上升的趋势（ = 113.36， < 0.01）。此外，人体钩虫感染率在职业（ = 159.41， < 0.01）和文化程度（ = 34.95， < 0.01）方面存在差异。问卷调查显示，知道“钩虫感染是如何发生的”且否认“使用新鲜粪便施肥”的受检者中人体钩虫感染率较低（ = 15.05， < 0.01； = 4.19， < 0.05）。
安徽省人体钩虫感染率已大幅下降；然而，部分地区和人群的感染率仍相对较高。华北平原应被视为钩虫病防控的重点地区，家庭主妇以及年龄较大、文化程度较低的人群是安徽省的重点目标人群。
