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Effect of agricultural activities on prevalence rates, and clinical and presumptive malaria episodes in central Côte d'Ivoire

Koudou, Benjamin G. and Tano, Yao and Keiser, Jennifer and Vounatsou, Penelope and Girardin, Olivier and Klero, Kouassi and Koné, Mamadou and N'goran, Eliézer K. and Cissé, Guéladio and Tanner, Marcel and Utzinger, Jürg. (2009) Effect of agricultural activities on prevalence rates, and clinical and presumptive malaria episodes in central Côte d'Ivoire. Acta tropica : Zeitschrift für Tropenwissenschaften und Tropenmedizin = revue des sciences tropicales et de médecine tropicale = review of tropical science and tropical medicine, 111 (3). pp. 268-274.

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Official URL: http://edoc.unibas.ch/dok/A5843193

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Abstract

Agricultural activities, among other factors, can influence the transmission of malaria. In two villages of central Cote d'Ivoire (Tiemelekro and Zatta) with distinctively different agro-ecological characteristics, we assessed Plasmodium prevalence rates, fever and clinically confirmed malaria episodes among children aged 15 years and below by means of repeated cross-sectional surveys. Additionally, presumptive malaria cases were monitored in dispensaries for a 4-year period. In Tiemelekro, we observed a decrease in malaria prevalence rates from 2002 to 2005, which might be partially explained by changes in agricultural activities from subsistence farming to cash crop production. In Zatta, where an irrigated rice perimeter is located in close proximity to human habitations, malaria prevalence rates in 2003 were significantly lower than in 2002 and 2005, which coincided with the interruption of irrigated rice farming in 2003/2004. Although malaria transmission differed by an order of magnitude in the two villages in 2003, there was no statistically significant difference between the proportions of severe malaria episodes (i.e. axillary temperature<37.5 degrees C plus parasitaemia<5000 parasites/mul blood). Our study underscores the complex relationship between malaria transmission, prevalence rate and the dynamics of malaria episodes. A better understanding of local contextual determinants, including the effect of agricultural activities, will help to improve the local epidemiology and control of malaria
Faculties and Departments:03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Klinische Pharmakologie
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Klinische Pharmakologie
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)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Medical Parasitology and Infection Biology > Helminth Drug Development (Keiser)
UniBasel Contributors:Vounatsou, Penelope and Tanner, Marcel and Keiser, Jennifer and Utzinger, Jürg
Item Type:Article, refereed
Bibsysno:Link to catalogue
Publisher:Elsevier Science Publ.
ISSN:0001-706X
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:24 Oct 2017 07:03
Deposited On:14 Sep 2012 06:46

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