Risk of malaria transmission from fish ponds in the Peruvian Amazon

M Maheu-Giroux, M Casapia, VE Soto-Calle, LB Ford, DL Buckeridge, OT Coomes, TW Gyorkos

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

    Abstract

    BACKGROUND: The contribution made by fish ponds (pisciculture) to malaria transmission in the Peruvian Amazon remains to be confirmed. Recent entomological evidence indicates that Anopheles darlingi, the main malaria vector in the region, is frequently found in fish ponds along the Iquitos-Nauta road (Loreto, Peru). The aim of this study was to quantify the effect of fish pond density on malaria occurrence. METHODS: A retrospective 30-month cohort study was conducted in eight communities along the Iquitos-Nauta road. Malaria incidence was ascertained from malaria registries of the local health post, which consist of data from both active and passive surveillance (247 cases). Fish pond density was measured using an interpreted satellite image and information on potential confounders was collected through interviewer-administered questionnaires. RESULTS: A total of 1018 individuals from 234 eligible households (90% of the 259 total number of households in the study area) provided complete information on exposures and outcome. Fish pond density was found to be a significant predictor of malaria occurrence (aOR=1.23; 95% CI: 1.09-1.38). CONCLUSION: The association between fish pond density and malaria suggests that fish ponds contribute to malaria transmission in the region. These results have important implications for the prevention and control of malaria and the development of pisciculture as an important economic activity in Amazonia and beyond
    Original languageEnglish
    JournalActa Tropica
    Volume115
    Issue number1-2
    Pages (from-to)112-118
    Number of pages7
    ISSN0001-706X
    DOIs
    Publication statusPublished - 2010

    Keywords

    • B780-tropical-medicine
    • Protozoal diseases
    • Malaria
    • Plasmodium falciparum
    • Plasmodium vivax
    • Vectors
    • Mosquitoes
    • Anopheles darlingi
    • Disease transmission
    • Risk factors
    • Fish farming
    • Fish ponds
    • Density
    • Incidence
    • Associations
    • Satellite imagery
    • Geographical information systems (GIS)
    • Amazona
    • Peru
    • America-Latin

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