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Prevalence and Risk Factors of Ascaris lumbricoides , Trichuris trichiura and Cryptosporidium Infections in Elementary School Children in Southwestern China: A School-Based Cross-Sectional Study

Author

Listed:
  • Dongjian Yang

    (Department of Epidemiology, School of Public Health, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
    Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai 200032, China
    Center for Tropical Disease Research, Fudan University, Shanghai 200032, China
    These authors contributed equally to this work.)

  • Ya Yang

    (Department of Epidemiology, School of Public Health, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
    Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai 200032, China
    Center for Tropical Disease Research, Fudan University, Shanghai 200032, China
    These authors contributed equally to this work.)

  • Yingjian Wang

    (Department of Epidemiology, School of Public Health, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
    Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai 200032, China
    Center for Tropical Disease Research, Fudan University, Shanghai 200032, China)

  • Yu Yang

    (Department of Epidemiology, School of Public Health, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
    Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai 200032, China
    Center for Tropical Disease Research, Fudan University, Shanghai 200032, China)

  • Shurong Dong

    (Department of Epidemiology, School of Public Health, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
    Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai 200032, China
    Center for Tropical Disease Research, Fudan University, Shanghai 200032, China)

  • Yue Chen

    (School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON K1G 5Z3, Canada)

  • Qingwu Jiang

    (Department of Epidemiology, School of Public Health, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
    Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai 200032, China
    Center for Tropical Disease Research, Fudan University, Shanghai 200032, China)

  • Yibiao Zhou

    (Department of Epidemiology, School of Public Health, Fudan University, 138 Yi Xue Yuan Road, Shanghai 200032, China
    Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai 200032, China
    Center for Tropical Disease Research, Fudan University, Shanghai 200032, China)

Abstract

Background : Intestinal parasitic infections pose great public health challenges in school children in developing countries. The aim of this study was to assess the prevalence of A. lumbricoides , T. trichiura and Cryptosporidium among elementary school children in rural southwestern China. Methods : A school-based cross-sectional study involving 321 elementary school children was conducted in 2014 in the southwest of China. They were invited to provide a stool sample and interviewed about the sanitary situation and hygiene behavior. Stool specimens were examined for A. lumbricoides and T. trichiura using the Kato-Katz fecal thick-smear technique. The presence of Cryptosporidium was determined using a modified acid-fast staining method. Results : The prevalence of infection was 10.0% (95% CI: 6.9–13.8%) for A. lumbricoides , 25.2% (95% CI: 20.6–30.4%) for T. trichiura and 2.4% for (95% CI: 1.1–4.9%) Cryptosporidium . The prevalence of co-infection was 3.7% (95% CI: 1.9–6.4%) for A. lumbricoides / T. trichiura , 0.3% (95% CI: 0–1.7%) for A. lumbricoides / Cryptosporidium and 0.9% (95% CI: 0.2–2.7%) for T. trichiura / Cryptosporidium . Children from households using well or river water were associated with a greater odds of A. lumbricoides infection (aOR = 2.61, 95% CI: 1.12–6.05). Having a household lavatory was associated with a lower odds of T. trichiura infection (aOR = 0.50, 95% CI: 0.30–0.84). Children who had three meals at the school canteen on week days were at a lower risk of Cryptosporidium infection. The use of spring water as a water source was associated with lower odds of any intestinal infection (aOR = 0.56, 95% CI: 0.35–0.91). Conclusions : Our study calls for an intervention program of school-based deworming combined with health education, hygiene promotion and provision of safe water and improved sanitation.

Suggested Citation

  • Dongjian Yang & Ya Yang & Yingjian Wang & Yu Yang & Shurong Dong & Yue Chen & Qingwu Jiang & Yibiao Zhou, 2018. "Prevalence and Risk Factors of Ascaris lumbricoides , Trichuris trichiura and Cryptosporidium Infections in Elementary School Children in Southwestern China: A School-Based Cross-Sectional Study," IJERPH, MDPI, vol. 15(9), pages 1-16, August.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:9:p:1809-:d:165130
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    References listed on IDEAS

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