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Related Experiment Videos

Cost of snail control.

W R Jobin

    The American Journal of Tropical Medicine and Hygiene
    |January 1, 1979
    PubMed
    Summary

    Niclosamide is the top molluscicide for controlling snails that transmit schistosomiasis. Its cost-effectiveness varies based on geographic factors like habitat volume and distance, impacting snail control program expenses.

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    Area of Science:

    • Schistosomiasis control
    • Molluscicide efficacy
    • Public health entomology

    Background:

    • Niclosamide (Bayluscide) is the widely accepted molluscicide for controlling snails transmitting Schistosoma mansoni and Schistosoma haematobium.
    • Extensive pilot projects and expanded control programs have utilized niclosamide globally, including in Brazil, Puerto Rico, Egypt, and Iran.

    Purpose of the Study:

    • To analyze and compare the costs of niclosamide-based snail control programs across different geographic regions.
    • To identify key factors influencing the economic viability of molluscicide application in schistosomiasis transmission zones.

    Main Methods:

    • Comparative analysis of data from six international pilot projects focused on niclosamide efficacy and cost.
    • Statistical examination of program costs in relation to geographic parameters such as snail habitat volume and distribution.

    Main Results:

    • Snail control benefits were found to be broadly similar across projects, with cost being the primary differentiator.
    • Program costs correlated significantly with geographic features, ranging from $1 to $40 per 100 m³ (1972 prices).
    • Dry regions with extensive irrigation systems were less costly than high-rainfall areas with scattered water bodies.

    Conclusions:

    • Geographic parameters are critical determinants of niclosamide molluscicide program costs.
    • Cost-effective schistosomiasis control strategies must account for local environmental conditions.
    • The study provides a framework for estimating current program costs using historical data and updated pricing.

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