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Diagnosis, clinical features, and self-reported morbidity of Strongyloides stercoralis and hookworm infection in a co-endemic setting

Becker, Sören L. and Sieto, Benjamin and Silué, Kigbafori D. and Adjossan, Lucas and Koné, Siaka and Hatz, Christoph and Kern, Winfried V. and N'Goran, Eliézer K. and Utzinger, Jürg. (2011) Diagnosis, clinical features, and self-reported morbidity of Strongyloides stercoralis and hookworm infection in a co-endemic setting. PLoS neglected tropical diseases, Vol. 5, H. 8 , e1292.

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Official URL: http://edoc.unibas.ch/dok/A6002165

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Abstract

BACKGROUND: Infections with Strongyloides stercoralis and other helminths represent important, yet often neglected issues in developing countries. Indeed, strongyloidiasis can be fatal, but only a few studies provide information regarding its health relevance in Africa. Moreover, clinical data on symptomatology and typical recognition patterns mainly originate from Western travel clinics. METHODOLOGY: A cross-sectional epidemiological survey was carried out in a rural part of south-central Cote d'Ivoire. Stool samples from 292 randomly selected individuals were examined for intestinal helminths, using a suite of diagnostic techniques (i.e., Kato-Katz, Baermann funnel, and Koga agar plate). Participants were interviewed with a pre-tested questionnaire and clinically examined. Multivariate logistic regression analysis was done to relate perceived morbidity and clinical findings to helminth infection status. PRINCIPAL FINDINGS: The prevalence of hookworm and S. stercoralis was 51.0% and 12.7%, respectively. Both infections were strongly associated with each other (adjusted odds ratio, 6.73; P>0.001) and higher prevalences were observed with age. S. stercoralis-infected individuals expressed self-reported morbidity considerably more often than those with hookworm infection. Clinical examination identified high prevalences of various pathologies and detected tendencies to worse health conditions in helminth-infected subjects. CONCLUSIONS/SIGNIFICANCE: The use of multiple diagnostic tools showed that S. stercoralis and hookworm are co-endemic in rural Cote d'Ivoire and that each infection causes clinical symptoms and sequelae. Our findings are important for (re-)estimating the burden of helminth infections, and highlight the need for integrating epidemiological surveys, rigorous diagnostic approaches, and clinical assessments in the developing world.
Faculties and Departments:03 Faculty of Medicine > Departement Public Health > Sozial- und Präventivmedizin > Travel Clinic (Neumayr)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Medicine > Travel Clinic (Neumayr)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Eco System Health Sciences > Health Impact Assessment (Utzinger)
UniBasel Contributors:Utzinger, Jürg and Hatz, Christoph
Item Type:Article, refereed
Bibsysno:Link to catalogue
Publisher:Library of Science
ISSN:1935-2727
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:01 Mar 2013 11:08
Deposited On:08 Nov 2012 16:09

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