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A cluster-randomized bovine intervention trial against schistosoma japonicum in the Peoples Republic of China: design and baseline results

By Darren Gray, Gail Williams, Yuesheng Li, Honggen Chen, Robert Li, Simon Forsyth, Adrian Barnett, Jiagang Guo, Zheng Feng and Donald McManus

Abstract

Article is also free to read on publisher website Abstract We describe the design and report baseline results of a cluster-randomized intervention to determine the importance of bovines for Schistosoma japonicum transmission in southern China. The study involves four matched village pairs in Hunan and Jiangxi Provinces, with a village within each pair randomly selected as intervention (human and bovine praziquantel treatment) or control (human praziquantel treatment only). Total study population prevalences at baseline were 12.4% (n = 5,390) and 15.2% (n = 1,573) for humans and bovines, respectively; village prevalences were similar within pairs. Bovine contamination index calculations showed that bovines less than 24 months of age were responsible for 74% of daily bovine environmental contamination with S. japonicum eggs. The village characteristics and baseline results underpin a rigorous study, which has major implications for deployment of a transmission-blocking bovine vaccine against S. japonicum. The combination of such a vaccine with other control strategies could potentially eliminate S. japonicum from southern China

Topics: 111700 PUBLIC HEALTH AND HEALTH SERVICES
Publisher: American Society of Tropical Medicine and Hygiene
Year: 2007
DOI identifier: 10.4269/ajtmh.2007.77.866
OAI identifier: oai:eprints.qut.edu.au:44916
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