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The Brazilian program for schistosomiasis control, 1975-1979

P A Machado

    The American Journal of Tropical Medicine and Hygiene
    |January 1, 1982
    PubMed
    Summary

    Schistosomiasis control in Brazil uses an adaptable ecological approach to disrupt disease transmission. This strategy, tested in Rio Grande do Norte, shows promising results for long-term public health management.

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    Area of Science:

    • Public Health
    • Epidemiology
    • Tropical Medicine

    Background:

    • Schistosomiasis mansoni poses a significant public health threat in Brazil.
    • Current control programs aim to interrupt disease transmission through ecological strategies.

    Purpose of the Study:

    • To evaluate a novel, adaptable ecological methodology for schistosomiasis control.
    • To identify critical points in the transmission chain for effective intervention.

    Main Methods:

    • Development of an adaptable methodology considering local ecological factors.
    • Application of chemotherapy to target vulnerable transmission links.
    • Ecological systems analysis for identifying intervention points.

    Main Results:

    • The adaptable methodology successfully identified ecosystems for targeted interventions.
    • Sanitary measures could be postponed in certain areas, optimizing resource allocation.
    • Initial results from Rio Grande do Norte surpassed expectations over a 4-year trial.

    Conclusions:

    • Long-term evaluation is crucial for assessing schistosomiasis control program effectiveness.
    • Further research in epidemiological systems analysis and probability quantification is needed.
    • An adaptable methodology is essential due to incomplete knowledge of transmission ecosystems.

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