Prevalence of intestinal protozoan infections among rural children in Henan Province from 2014 to 2015

Dong-yang Zhao; Tian-tian Jiang; Wei-qi Chen; Ya-lan Zhang; Yan Deng; Bian-li XU; Hong-wei Zhang; Wan-shen Guo; Xi-meng Lin; Peng LI; Yu-ling Zhao; Cheng-yun Yang; Dan Qian; Rui-min Zhou; Ying Liu; Su-hua LI; Jian-she Chen

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Prevalence of intestinal protozoan infections among rural children in Henan Province from 2014 to 2015

VernacularTitle:2014—2015 年河南省农村儿童肠道原虫感染调查
Author: Dong-Yang ZHAO ^{1
,

2} ; Tian-Tian JIANG ^{1
,

2} ; Wei-Qi CHEN ^{1
,

2} ; Ya-Lan ZHANG ^{1
,

2} ; Yan DENG ^{1
,

2} ; Bian-Li XU ^{1
,

2} ; Hong-Wei ZHANG ^{1
,

2} ; Wan-Shen GUO ^{1
,

2} ; Xi-Meng LIN ^{1
,

2} ; Peng LI ^{1
,

2} ; Yu-Ling ZHAO ^{1
,

2} ; Cheng-Yun YANG ^{1
,

2} ; Dan QIAN ^{1
,

2} ; Rui-Min ZHOU ^{1
,

2} ; Ying LIU ^{1
,

2} ; Su-Hua LI ^{1
,

2} ; Jian-She CHEN ^{1
,

2}
Author Information

1. Henan Provincial Center for Disease Control and Prevention
2. Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
Publication Type:Journal Article
Keywords: Intestinal protozoa; Rural children; Influencing factor; Henan Province
From: Chinese Journal of Schistosomiasis Control 2021;33(3):287-292
CountryChina
Language:Chinese
Abstract: Objective To investigate the prevalence and influencing factors of intestinal protozoan infections among rural children in Henan Province. Methods A total of 104 survey sites were sampled from 35 counties (cities) in Henan Province using the stratified cluster sampling method to investigate the prevalence of intestinal protozoan infections among rural children from 2014 to 2015. The trophozoites and cysts of intestinal protozoa were identified using the iodine staining method and the physiological saline direct smear method (one detection for one stool sample). The prevalence of intestinal protozoan infections was compared among rural children with different characteristics, and the factors affecting intestinal protozoan infections among rural children were identified. Results The overall prevalence of intestinal protozoan infections was 0.60% (40/6 771) among rural children in Henan Province from 2014 to 2015. There were 7 species of intestinal protozoa identified, and there was no species-specific prevalence (χ² = 37.732, P = 0.000). No significant differences were found in prevalence of intestinal protozoan infections among rural children in terms of gender (χ² = 1.793, P = 0.181), age (χ² = 1.443, P = 0.486), occupation (χ² = 0.219, P = 0.896) or ecological region (χ² = 1.700, P = 0.637). In addition, terrain (χ² = 2.311, P = 0.510), economic level (χ² = 4.322, P = 0.229), source of drinking water (χ² = 0.731, P = 0.393), eating raw vegetables (χ² = 1.134, P = 0.287) and deworming (χ² = 1.089, P = 0.297) had no remarkable effects on the prevalence of intestinal protozoan infections among rural children in Henan Province; however, the prevalence of intestinal protozoan infections varied significantly among rural children living in regions with different coverage of non-harmless toilets (χ² = 10.050, P = 0.018). Conclusion The prevalence of intestinal protozoan infections is low among rural children in Henan Province.