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Sustainable Interventions Key To Successful Schistosomiasis Control

Date:
May 4, 2009
Source:
Public Library of Science
Summary:
A decade after the conclusion of a schistosomiasis control program in Mali, prevalence of the disease had regressed to pre-intervention levels, according to a new study.

A decade after the conclusion of a schistosomiasis control program in Mali, prevalence of the disease had regressed to pre-intervention levels, according to a new study in the journal PLoS Neglected Tropical Diseases.

The researchers, led by Dr Archie Clements at the University of Queensland, found that clusters of schistosomiasis infections occurred generally in the same, original areas ten years after the end of a donor-funded control program, conducted between 1982 and 1992.

Schistosomiasis is a parasitic disease caused by several species of fluke of the genus Schistosoma. Although it has a low mortality rate, schistosomiasis often is a chronic illness that can damage internal organs and, in children, impair growth and cognitive development.

Mali is one of the first countries in sub-Saharan Africa to have initiated a national schistosomiasis control program, which began as a partnership between the Malian Ministry of Health, the WHO, and the German Technical Cooperation (GTZ). Lack of government funding curtailed the program's activities after 1998, until a new program, backed by the Schistosomiasis Control Initiative, began in 2004.

Clements and his co-authors undertook a comparative study of the spatial distribution of schistosomiasis in Mali between 1984-1989 and 2004-2006. They show that the spatial distribution of schistosomiasis was similar in both time periods, even in the face of large-scale control program based on mass distribution of anti-parasitic drugs.

According to Clements, long-term stability in the spatial distribution of schistosomiasis means that reviewing historic data can provide a useful, initial source of evidence for planning targeted contemporary control program.

"However, if these control program are to have a sustainable impact on the burden of schistosomiasis they must be delivered over a very long time period, or supplementary methods need to be implemented, such as improvement in water sanitation and hygiene," he said.

Co-authors on this manuscript include: Elisa Bosqué-Oliva, Moussa Sacko, Aly Landouré, Robert Dembélé, Mamadou Traoré, Godefroy Coulibaly, Albis F. Gabrielli, Alan Fenwick, and Simon Brooker.

The Schistosomiasis Control Initiative was funded by the Bill and Melinda Gates foundation. Simon Brooker is supported by a Career Development Fellowship (081673) from the Wellcome Trust. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Clements ACA, Bosque´-Oliva E, Sacko M, Landoure´ A, Dembe´le´ R, et al. A Comparative Study of the Spatial Distribution of Schistosomiasis in Mali in 1984-89 and 2004-06. PLoS Negl Trop Dis, 3(5): e431 DOI: 10.1371/journal.pntd.0000431

Cite This Page:

Public Library of Science. "Sustainable Interventions Key To Successful Schistosomiasis Control." ScienceDaily. ScienceDaily, 4 May 2009. <www.sciencedaily.com/releases/2009/05/090504201110.htm>.
Public Library of Science. (2009, May 4). Sustainable Interventions Key To Successful Schistosomiasis Control. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2009/05/090504201110.htm
Public Library of Science. "Sustainable Interventions Key To Successful Schistosomiasis Control." ScienceDaily. www.sciencedaily.com/releases/2009/05/090504201110.htm (accessed October 2, 2014).

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