Malaria incidence and prevalence among children living in a peri-urban area on the coast of Benin, West Africa: a longitudinal study

A Nahum, A Erhart, A Maye, D Ahounou, C Van Overmeir, J Menten, H van Loen, M Akogbeto, M Coosemans, A Massougbodji, U D'Alessandro

    Research output: Contribution to journalA1: Web of Science-article

    Abstract

    Clinical malaria incidence was determined over 18 months in a cohort of 553 children living in a peri-urban area near Cotonou. Three cross-sectional surveys were also carried out. Malaria incidence showed a marked seasonal distribution with two peaks: the first corresponding to the long rainy season, and the second corresponding to the overflowing of Lake Nokoue. The overall Plasmodium falciparum incidence rate was estimated at 84/1,000 person-months, and its prevalence was estimated at over 40% in the two first surveys and 68.9% in the third survey. Multivariate analysis showed that girls and people living in closed houses had a lower risk of clinical malaria. Bed net use was associated with a lower risk of malaria infection. Conversely, children of families owing a pirogue were at higher risk of clinical malaria. Considering the high pyrethroids resistance, indoor residual spraying with either a carbamate or an organophospate insecticide may have a major impact on the malaria burden
    Original languageEnglish
    JournalAmerican Journal of Tropical Medicine and Hygiene
    Volume83
    Issue number3
    Pages (from-to)465-473
    Number of pages9
    ISSN0002-9637
    DOIs
    Publication statusPublished - 2010

    Keywords

    • B780-tropical-medicine
    • Protozoal diseases
    • Malaria
    • Plasmodium falciparum
    • Vectors
    • Mosquitoes
    • Anopheles gambiae
    • Anopheles melas
    • Incidence
    • Prevalence
    • Seasonality
    • Rainfall
    • Lakes
    • Risk factors
    • Impregnated bednets
    • Insecticides
    • Pyrethroids
    • Insecticide resistance
    • Carbamate
    • Benin
    • Africa-West

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