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. 2011 Dec 30:4:243.
doi: 10.1186/1756-3305-4-243.

Effect of an integrated control strategy for schistosomiasis japonica in the lower reaches of the Yangtze River, China: an evaluation from 2005 to 2008

Le-Ping Sun  1 , Wei Wang, You-Sheng Liang, Zeng-Xi Tian, Qing-Biao Hong, Kun Yang, Guo-Jing Yang, Jian-Rong Dai, Yang Gao
Affiliations

Effect of an integrated control strategy for schistosomiasis japonica in the lower reaches of the Yangtze River, China: an evaluation from 2005 to 2008

Le-Ping Sun et al. Parasit Vectors. .

Abstract

Background: Schistosomiasis japonica remains a major public health concern in China. There are many interventions implemented to control the transmission of the disease. The purpose of the present study was to investigate the effects of an integrated control strategy for schistosomiasis control.

Methods: An integrated control strategy for schistosomiasis japonica with emphasis on removing cattle from snail-infested grasslands, providing farmers with mechanized farm equipment, improving sanitation by supplying tap water and building lavatories and latrines and providing boats with fecal-matter containers was implemented in 107 villages of the lower reaches of the Yangtze River, Jiangsu Province, China, during a 32-month period from May 2005 to 2008, and the effectiveness was investigated.

Results: Following the effects of the comprehensive control, the snail habitat, infected snail habitat, snail infection rate, and S. japonicum prevalence in both humans and livestock all appeared a declining trend year by year, with reductions of 47.88%, 94.29%, 92.55%, 96.94%, and 100% compared with those before the comprehensive control. In addition, all of the 17 counties achieved the infection control in 2007, and 7 reached the criteria of transmission control in 2008. The confirmed snail habitats reduced from 107 to 20, and the acute infections have also been controlled for 2 successive years since 2007.

Conclusions: The integrated control strategy for schistosomiasis japonica is effective to control the transmission of S. japonicum.

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Figures

Figure 1
Figure 1
Location of the study villages in the lower reaches of the Yangtze River, Jiangsu province, China.
Figure 2
Figure 2
Evolution of average S. japonicum prevalence in humans, livestock and O. hupensis snails in the study villages from 2003 to 2008.
See this image and copyright information in PMC

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