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Population movement and malaria persistence in Rameswaram Island.

P K Rajagopalan, P Jambulingam, S Sabesan

    Social Science & Medicine (1982)
    |January 1, 1986
    PubMed
    Summary
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    Population movement, including seasonal fishing and pilgrim travel, facilitates persistent malaria transmission in Rameswaram Island. This movement risks introducing drug-resistant malaria strains, hindering control efforts.

    Area of Science:

    • Epidemiology
    • Public Health
    • Tropical Medicine

    Background:

    • Rameswaram Island experiences persistent malaria transmission.
    • The island's population includes fishermen with migratory fishing patterns.
    • Rameswaram is a significant pilgrimage and transit hub.

    Purpose of the Study:

    • To investigate the role of population movement in malaria persistence on Rameswaram Island.
    • To identify high-risk areas and population groups for malaria transmission.
    • To assess the impact of population movement on malaria control programs.

    Main Methods:

    • Parasitological surveys in fishing camps.
    • Entomological assessments in vulnerable areas.
    • Analysis of malaria case data, including pilgrim and transit passenger information.

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    Main Results:

    • Seasonal fishing camps are identified as highly vulnerable and receptive to malaria.
    • Pilgrims from North India present a risk for introducing chloroquine-resistant Plasmodium falciparum.
    • Transit passengers increase the risk of malaria introduction from endemic countries.

    Conclusions:

    • Continuous population movement significantly contributes to ongoing malaria transmission.
    • Existing malaria control programs face challenges due to population mobility.
    • Targeted interventions are needed to mitigate malaria risks associated with population movement.