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Schistosomes, hookworm and trichuris infections synergize to increase the risk of anemiaNew research published June 4th in the open-access journal PLoS Neglected Tropical Diseases provides evidence that the risk of anemia is amplified in children simultaneously infected with hookworm and schistosomes or hookworm and trichuris, when compared to the sum of risks for children with singular infections. Amara Ezeamama and colleagues conducted this study in 507 school-age children from helminth-endemic villages in The Philippines, to determine whether co- infections of hookworm, schistosomes and trichuris in polyparasitized individuals magnified the risk of becoming anemic beyond the sum of risks associated with individual infections. It is common in many tropical developing countries for individuals to be infected with several parasites at the same time. Despite this widespread phenomenon, the functional and health consequences of multiple infections for parasite-associated morbidity such as anemia are not clearly understood. Previous work by these scientists suggested that low-intensity polyparasitic infections were associated with higher odds of anemia among school-age children relative to uninfected children or children with one low infection. This study goes further to specifically evaluate the type and extent of biological interactions between helminth species in polyparasitized individuals. Results from this research suggest that combined treatment for some helminth species and schistosomes could yield greater than additive benefits for reducing the burden of anemia in helminth-endemic areas. However, more studies to understand the full range of interactions between parasite species in their joint effects on helminth-associated morbidities will be necessary to better predict the impact of wide-scale public health intervention. ###
Collaborating Institutions: 1)International Health Institute, Brown University, Providence, RI.
PLEASE ADD THIS LINK TO THE PUBLISHED ARTICLE IN ONLINE VERSIONS OF YOUR REPORT: http://www.plosntds.org/doi/pntd.0000245 (link will go live on Wednesday, June 4) CITATION:Ezeamama AE, McGarvey ST, Acosta LP, Zierler S, Manalo DL, et al. (2008) The Synergistic Effect of Concomitant Schistosomiasis, Hookworm, and Trichuris Infections on Children's Anemia Burden. PLoS Negl Trop Dis 2(6): e245. doi:10.1371/journal.pntd.0000245 PRESS-ONLY PDF: http://www.plos.org/press/pntd-02-06-04-ezeamama.pdf CONTACT: Dr. Amara Ezeamama
Disclaimer This press release refers to an upcoming article in PLoS Neglected Tropical Diseases. The release is provided by the article authors. Any opinions expressed in these releases or articles are the personal views of the journal staff and/or article contributors, and do not necessarily represent the views or policies of PLoS. PLoS expressly disclaims any and all warranties and liability in connection with the information found in the releases and articles and your use of such information. About PLoS Neglected Tropical Diseases PLoS Neglected Tropical Diseases (http://www.plosntds.org/) is a peer-reviewed, open-access journal devoted to the pathology, epidemiology, prevention, treatment, and control of the neglected tropical diseases, as well as public policy relevant to this group of diseases. All works published in PLoS Neglected Tropical Diseases are open access, which means that everything is immediately and freely available subject only to the condition that the original authorship and source are properly attributed. The Public Library of Science uses the Creative Commons Attribution License, and copyright is retained by the authors. About the Public Library of Science The Public Library of Science (PLoS) is a non-profit organization of scientists and physicians committed to making the world's scientific and medical literature a freely available public resource. For more information, visit http://www.plos.org.
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