Effect of integrated control intervention on soil-transmitted helminth infections in Jiangxi province in southeast China.

Authors:
Xiao-Jun Zeng
Xiao-Jun Zeng
Jiangxi Institute of Parasitic Diseases
China
Wei-sheng Jiang
Wei-sheng Jiang
National Institute of Parasitic Diseases
China
Shu-Ying Xie
Shu-Ying Xie
Jiangxi Provincial Institute of Parasitic Diseases
China
Ying-Dan Chen
Ying-Dan Chen
Institute for Parasitic Disease Control and Prevention
Xiao-nan Gu
Xiao-nan Gu
Jiangxi Provincial Institute of Parasitic Diseases
China
Jun Ge
Jun Ge
Tsinghua University
China
Chun-qin Hang
Chun-qin Hang
Jiangxi Provincial Institute of Parasitic Diseases
China
Zhao-jun Li
Zhao-jun Li
Jiangxi Provincial Institute of Parasitic Diseases
China

Acta Trop 2019 Jun 2;194:148-154. Epub 2019 Apr 2.

Jiangxi Provincial Institute of Parasitic Diseases, Nanchang 330096, China. Electronic address:

Soil transmitted helminths (STHs) burden was enormous in China several decades ago, however, rigorous control efforts have been successful with appreciable reduction in diseases burden. Here, we assessed provincial-level data derived from cross sectional surveys, executed in 1989, 2002 and 2014, on the prevalence of STHs among populations in Jiangxi province, China. This study, also, reported STHs integrated control intervention aimed at reducing STHs transmission and worm burden among population at county-level. The intervention strategies included mass drug administration (MDA), health education, improved water supply for drinking, improved sanitary facilities and environmental modification in Guixi municipality. The overall infection rate of STHs in Jiangxi province decreased from 77.7% (1989) to 6.3% (2014), while Ascaris lumbricoides, hookworm and Trichuris trichiura decreased from 71.1%, 17.6% and 17.0% (1989) to 0.9%, 4.7% and 1.0% (2014), respectively. STHs infection rates in female population were higher than male in the three surveys. Reduction in STHs prevalence was observed in all age groups, but the decline was less in higher age group. STHs prevalence in Guixi intervention region indicated remarkable reduction from 31.8% (2006) to 6.1% (2009) (χ=255.22, P<0.01). A. lumbricoides, hookworm and T. trichiura infection rates decreased from 10.4%, 17.0% and 7.1% (2006) to 0.1%, 4.1% and 2.2%, respectively (2009) (X = 110.23, P<0.01; X = 103.57, P < 0.01; X = 32.0, P < 0.01). A. lumbricoides infection rate declined the most of all STHs. Following control efforts with integrated control intervention strategies, STHs prevalence in Jiangxi province experienced remarkable trend in decline between 1989 and 2014. Consolidating control efforts with sustained integrated control strategies is, therefore, important to achieving STHs elimination in China.

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Source
http://dx.doi.org/10.1016/j.actatropica.2019.04.001DOI Listing
June 2019
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