CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES >
Analysis on the results of surveillance of Enterobius vermicularis infection among children in rural areas in Jiangxi Province during 2016-2019
Received date: 2020-05-22
Online published: 2020-11-12
Supported by
Jiangxi Province Key Lab Project(2019BCD40006);Science and Technology Planning Project of Jiangxi Health Commission(20152019);Science and Technology Planning Project of Jiangxi Health Commission(20176027);Science and Technology Planning Project of Jiangxi Health Commission(20182003);Science and Technology Planning Project of Jiangxi Health Commission(20203868);Science and Technology Planning Project of Jiangxi Health Commission(20203870)
Objective To understand the status and the changing trend of Enterobius vermicularis infection in children in Jiangxi Province during 2016-2019, and to provide scientific basis for formulating control strategies in the province. Methods Surveillance sites of soil-transmitted helminth (STH) were set up in 83 counties (cities and districts) in Jiangxi Province during 2016-2019. Children aged 3-9 years were examined for Enterobius vermicularis infection by the modified Kato-Katz thick smearmethod (two slide reading/one fecal sample) and the adhesive cellophane anal swab method. The SPSS 25.0 statistical software was used to perform statistical description, comparison and trend analysis on the data. Results A total of 32 587 children were examined in 2016-2019, revealing a prevalence of E. vermicularis infection of 10.2% (931/9 155), 12.8% (1 045/8 145), 13.1% (964/7 343) and 10.5% (836/7 944), respectively, in each year, showing a trend of first increase and then decrease (P > 0.05). The average infection rate in children remained ≥ 10% in 4 consecutive years in Xinyu, Jiujiang, Ganzhou and Fuzhou Cities, among them the Xinyu City had the highest infection in each year: 17.4% (8/46), 24.0% (6/25), 32.3% (10/31) and 22.2% (12/54), respectively. The infection rate was comparable between males and females [10.1% (506/4 989) and 10.2% (425/4 166) in 2016, 13.0% (568/4 383) and 12.7% (477/3 762) in 2017, 13.3% (530/3 981) and 12.9% (434/3 362) in 2018, 10.3% (440/4 283) and 10.8% (396/3 661) in 2019, respectively; P > 0.05]. The infection rate among nonboarding children was highest (13.7%, 83/606), whereas in all other years, the kindergarten children had the highest infection rate [13.8% (512/3 705), 16.3% (567/3 486) and 12.3% (477/3 885), respectively]. The infection rate was relatively higher in children aged 4-7, which remained≥ 10% in all years. The detection rate using adhesive cellophane anal swab method was 11.4% (3 730/32 587), significantly higher than the 1.2% (392/32 587) using Kato-Katz thick smear method. Conclusion A higher prevalence of E. vermicularis infection was found among children in Jiangxi Province in 2016-2019, with no significant difference between years. It is necessary to strengthen surveillance and appropriate control for kindergarten children.
Key words： Enterobius vermicularis; Children; Infection; Surveillance; Jiangxi Province
Zhe CHEN , Wei-sheng JIANG , Jun GE , Kun-jiao DAI , Dong LI , Ke-xing LIU , Xiao-jun ZENG . Analysis on the results of surveillance of Enterobius vermicularis infection among children in rural areas in Jiangxi Province during 2016-2019[J]. CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES, 2020 , 38(5) : 542 -547 . DOI: 10.12140/j.issn.1000-7423.2020.05.003
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